feat: flight-test-engineer skill package v0.1.0

2026-08-14 16:59:03 +02:00
commit f269e92225
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--- a/PROVENANCE.md
+++ b/PROVENANCE.md
@@ -0,0 +1,31 @@
+# Data provenance — flight-test-engineer
+
+Where the content of this skill package comes from, counted by
+content items (tasks, competences, tools, evidence entries, curated
+knowledge). Rendered live by Gitea:
+
+```mermaid
+%%{init: {'theme':'base','themeVariables':{'pie1':'#f9a825','pie2':'#1e88e5','pie3':'#ff355e','pie4':'#d97757','pie5':'#8e24aa','pieOuterStrokeWidth':'0px','pieSectionTextColor':'#fff'}}}%%
+pie showData
+    title Content sources — flight-test-engineer
+    "ESCO (occupation & competences)" : 35
+    "O*NET (tasks & tools)" : 153
+    "Job boards (market evidence)" : 97
+    "Anthropic official Claude skills" : 6
+    "External AI skill packs (mapped)" : 179
+```
+
+| Source | Items | Share | Files |
+|---|---|---|---|
+| ESCO (occupation & competences) | 35 | 7.4 % | references/profile.md, references/skills.md |
+| O*NET (tasks & tools) | 153 | 32.6 % | references/tasks.md, references/tools.md |
+| Job boards (market evidence) | 97 | 20.6 % | references/market.md (full report) + "Market evidence" headline sections |
+| Wikipedia & AI expert curation | 0 | 0.0 % | glossary, literature, usecases, intake, quality, evals/ |
+| Anthropic official Claude skills | 6 | 1.3 % | references/ai-skills.md, section "anthropics/skills" (official Claude Code skills) |
+| External AI skill packs (mapped) | 179 | 38.1 % | references/ai-skills.md (per-source attribution inside) |
+| Stack Exchange practitioner Q&A (CC-BY-SA) | 0 | 0.0 % | references/practitioner-qa.md (per-entry attribution inside) |
+
+Licensing: O*NET (USDOL/ETA, CC BY 4.0) · ESCO (© European Union) ·
+job-ad evidence via official APIs (JSearch/Adzuna) · Wikipedia content
+paraphrased with source URLs — never copied · external AI skills are
+linked, not copied (Apache-2.0/MIT/source-available, see ai-skills.md).
--- a/SKILL.md
+++ b/SKILL.md
@@ -0,0 +1,73 @@
+---
+name: flight-test-engineer
+description: "Occupational skill for the role 'flight test engineer' (also: flight test technology specialist, flight test technician, flight test performance engineer, flight test engineering expert, test and evaluation engineer, CFD engineer). Use when the user asks for typical flight test engineer work such as: Conduct validation or qualification tests of new or existing processes, equipment, or software in accordance with internal protocols or external standards.; Design validation study features, such as sampling, testing, or analytical methodologies.; Develop validation master plans, process flow diagrams, test cases, or standard operating procedures."
+---
+
+# Flight Test Engineer
+
+Flight test engineers work with other systems engineers to plan the tests in detail and to make sure that the recording systems are installed for the required data parameters. They analyse the data collected during test flights and produce reports for individual test phases and for the final flight test. They are also responsible for the safety of the test operations.
+
+## Core workflow
+
+1. Conduct validation or qualification tests of new or existing processes, equipment, or software in accordance with internal protocols or external standards.
+2. Design validation study features, such as sampling, testing, or analytical methodologies.
+3. Develop validation master plans, process flow diagrams, test cases, or standard operating procedures.
+4. Prepare validation or performance qualification protocols for new or modified manufacturing processes, systems, or equipment for production of pharmaceuticals, electronics, or other products.
+5. Analyze validation test data to determine whether systems or processes have met validation criteria or to identify root causes of production problems.
+6. Conduct audits of validation or performance qualification processes to ensure compliance with internal or regulatory requirements.
+7. Create, populate, or maintain databases for tracking validation activities, test results, or validated systems.
+8. Direct validation activities, such as protocol creation or testing.
+
+## How to use this skill
+
+- Read [references/profile.md](references/profile.md) for the occupation profile and scope.
+- Consult [references/tasks.md](references/tasks.md) for the full task and activity inventory.
+- Check [references/skills.md](references/skills.md) for essential vs. optional competences.
+- Check [references/tools.md](references/tools.md) for the software commonly used in this role.
+- See [references/ai-skills.md](references/ai-skills.md) — matched external AI agent skills (per-source attribution).
+
+## Key competences (essential)
+
+- adjust engineering designs
+- aircraft flight control systems
+- analyse test data
+- approve engineering design
+- aviation meteorology
+- common aviation safety regulations
+- engineering principles
+- engineering processes
+- ensure aircraft compliance with regulation
+- industrial engineering
+- manufacturing processes
+- operate radio navigation instruments
+- operate two-way radio systems
+- oversee aircraft sensor and recording systems
+- perform scientific research
+
+## Hot technologies
+
+- The MathWorks MATLAB
+- Docker
+- GitHub
+- Kubernetes
+- Red Hat OpenShift
+- Microsoft Power BI
+- Amazon Web Services AWS CloudFormation
+- Splunk Enterprise
+- Dassault Systemes SolidWorks
+- Chef
+
+
+<!-- hot-tech -->
+
+## Hot technologies
+
+Top tools from 54 gated job ads (see references/market.md, as of 2026-07-12):
+
+- Matlab — 22 %
+- Python — 15 %
+
+<!-- hot-tech -->
+
+---
+*Sources: ESCO v1.2.1 (http://data.europa.eu/esco/occupation/608edf30-fe37-4ae5-bdd1-2d3a8fd347bd), O*NET 30.3 (17-2112.02). See manifest.json for licensing/attribution.*
--- a/manifest.json
+++ b/manifest.json
@@ -0,0 +1,280 @@
+{
+  "name": "flight-test-engineer",
+  "title": "flight test engineer",
+  "version": "0.1.0",
+  "layer": "core",
+  "language": "en",
+  "generated": "2026-07-07",
+  "ids": {
+    "esco_uri": "http://data.europa.eu/esco/occupation/608edf30-fe37-4ae5-bdd1-2d3a8fd347bd",
+    "esco_code": "2152.1.2",
+    "isco_group": "2152",
+    "onet_soc": "17-2112.02",
+    "crosswalk_match": "closeMatch"
+  },
+  "sources": [
+    {
+      "name": "ESCO",
+      "version": "1.2.1",
+      "url": "https://esco.ec.europa.eu/"
+    },
+    {
+      "name": "O*NET",
+      "version": "30.3",
+      "url": "https://www.onetcenter.org/",
+      "license": "CC BY 4.0"
+    }
+  ],
+  "attribution": "This package includes information from the O*NET Database (v30.3) by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), CC BY 4.0. skillfactor is not endorsed by USDOL/ETA. ESCO data (v1.2.1) (c) European Union, used per the ESCO download conditions: https://esco.ec.europa.eu/en/use-esco/download",
+  "counts": {
+    "tasks": 21,
+    "dwas": 19,
+    "skills_essential": 19,
+    "skills_optional": 15,
+    "software": 112
+  },
+  "enrichment_ai_skills": {
+    "generated": "2026-07-14",
+    "method": "deterministic mapping (ISCO prefix + title/competence keywords)",
+    "sources": {
+      "anthropics/skills": {
+        "repo": "https://github.com/anthropics/skills",
+        "commit": "f6656c1",
+        "license": "Apache-2.0; the document skills (docx/pdf/pptx/xlsx) are source-available \u2014 see the LICENSE.txt in the upstream skill folder",
+        "skills": 3
+      },
+      "wshobson/agents": {
+        "repo": "https://github.com/wshobson/agents",
+        "commit": "6fd3247",
+        "license": "MIT (c) Seth Hobson",
+        "skills": 3
+      },
+      "LambdaTest/agent-skills": {
+        "repo": "https://github.com/LambdaTest/agent-skills",
+        "commit": "54824d6",
+        "license": "MIT",
+        "skills": 12
+      },
+      "cypress-io/ai-toolkit": {
+        "repo": "https://github.com/cypress-io/ai-toolkit",
+        "commit": "9c9038e",
+        "license": "MIT",
+        "skills": 3
+      },
+      "alirezarezvani/claude-code-skill-factory": {
+        "repo": "https://github.com/alirezarezvani/claude-code-skill-factory",
+        "commit": "ba18b31",
+        "license": "MIT",
+        "skills": 1
+      },
+      "mikeyobrien/ralph-orchestrator": {
+        "repo": "https://github.com/mikeyobrien/ralph-orchestrator",
+        "commit": "407cb96",
+        "license": "MIT",
+        "skills": 1
+      },
+      "davila7/claude-code-templates": {
+        "repo": "https://github.com/davila7/claude-code-templates",
+        "commit": "fa79251",
+        "license": "MIT",
+        "skills": 4
+      },
+      "mhattingpete/claude-skills-marketplace": {
+        "repo": "https://github.com/mhattingpete/claude-skills-marketplace",
+        "commit": "3fa16a9",
+        "license": "Apache-2.0",
+        "skills": 1
+      },
+      "a5c-ai/babysitter": {
+        "repo": "https://github.com/a5c-ai/babysitter",
+        "commit": "44a5d58b",
+        "license": "MIT",
+        "skills": 10
+      },
+      "jeremylongshore/claude-code-plugins-plus-skills": {
+        "repo": "https://github.com/jeremylongshore/claude-code-plugins-plus-skills",
+        "commit": "e112938a",
+        "license": "MIT",
+        "skills": 5
+      },
+      "omergocmen/vibe-coder-kit": {
+        "repo": "https://github.com/omergocmen/vibe-coder-kit",
+        "commit": "76c5b30",
+        "license": "MIT",
+        "skills": 1
+      },
+      "alirezarezvani/claude-skills": {
+        "repo": "https://github.com/alirezarezvani/claude-skills",
+        "commit": "0241f43",
+        "license": "MIT",
+        "skills": 1
+      },
+      "FlorianBruniaux/claude-code-ultimate-guide": {
+        "repo": "https://github.com/FlorianBruniaux/claude-code-ultimate-guide",
+        "commit": "5395214",
+        "license": "custom (see upstream LICENSE)",
+        "skills": 1
+      },
+      "mukul975/Anthropic-Cybersecurity-Skills": {
+        "repo": "https://github.com/mukul975/Anthropic-Cybersecurity-Skills",
+        "commit": "673da1f",
+        "license": "Apache-2.0",
+        "skills": 1
+      },
+      "claude-world/director-mode-lite": {
+        "repo": "https://github.com/claude-world/director-mode-lite",
+        "commit": "9d0c333",
+        "license": "MIT",
+        "skills": 2
+      },
+      "dotnet/skills": {
+        "repo": "https://github.com/dotnet/skills",
+        "commit": "79a2ada",
+        "license": "MIT",
+        "skills": 5
+      },
+      "vibeeval/vibecosystem": {
+        "repo": "https://github.com/vibeeval/vibecosystem",
+        "commit": "cea9462",
+        "license": "MIT",
+        "skills": 2
+      },
+      "eduardo-sl/go-agent-skills": {
+        "repo": "https://github.com/eduardo-sl/go-agent-skills",
+        "commit": "3c45d7f",
+        "license": "MIT",
+        "skills": 1
+      },
+      "nWave-ai/nWave": {
+        "repo": "https://github.com/nWave-ai/nWave",
+        "commit": "1d0f13c",
+        "license": "MIT",
+        "skills": 4
+      },
+      "oliver-kriska/claude-elixir-phoenix": {
+        "repo": "https://github.com/oliver-kriska/claude-elixir-phoenix",
+        "commit": "d6b21b5",
+        "license": "MIT",
+        "skills": 1
+      },
+      "NeoLabHQ/context-engineering-kit": {
+        "repo": "https://github.com/NeoLabHQ/context-engineering-kit",
+        "commit": "e61511b",
+        "license": "GPL",
+        "skills": 1
+      },
+      "trailofbits/skills": {
+        "repo": "https://github.com/trailofbits/skills",
+        "commit": "cfe5d7b",
+        "license": "custom (see upstream LICENSE)",
+        "skills": 2
+      },
+      "rampstackco/claude-skills": {
+        "repo": "https://github.com/rampstackco/claude-skills",
+        "commit": "bc6d961",
+        "license": "MIT",
+        "skills": 1
+      },
+      "nanocoai/nanoclaw": {
+        "repo": "https://github.com/nanocoai/nanoclaw",
+        "commit": "da9a74f",
+        "license": "MIT",
+        "skills": 1
+      },
+      "affaan-m/everything-claude-code": {
+        "repo": "https://github.com/affaan-m/everything-claude-code",
+        "commit": "ed38744",
+        "license": "MIT",
+        "skills": 2
+      },
+      "zebbern/claude-code-guide": {
+        "repo": "https://github.com/zebbern/claude-code-guide",
+        "commit": "d2c5280",
+        "license": "MIT",
+        "skills": 1
+      },
+      "AgriciDaniel/claude-ads": {
+        "repo": "https://github.com/AgriciDaniel/claude-ads",
+        "commit": "669c760",
+        "license": "MIT",
+        "skills": 1
+      },
+      "nexscope-ai/eCommerce-Skills": {
+        "repo": "https://github.com/nexscope-ai/eCommerce-Skills",
+        "commit": "56f3288",
+        "license": "MIT",
+        "skills": 1
+      },
+      "K-Dense-AI/claude-scientific-skills": {
+        "repo": "https://github.com/K-Dense-AI/claude-scientific-skills",
+        "commit": "4d97e29",
+        "license": "MIT",
+        "skills": 1
+      },
+      "foryourhealth111-pixel/Vibe-Skills": {
+        "repo": "https://github.com/foryourhealth111-pixel/Vibe-Skills",
+        "commit": "34429a8",
+        "license": "Apache-2.0",
+        "skills": 2
+      },
+      "K-Dense-AI/scientific-agent-skills": {
+        "repo": "https://github.com/K-Dense-AI/scientific-agent-skills",
+        "commit": "4d97e29",
+        "license": "MIT",
+        "skills": 1
+      },
+      "brycewang-stanford/Auto-Empirical-Research-Skills": {
+        "repo": "https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills",
+        "commit": "85bf545",
+        "license": "CC-BY-4.0",
+        "skills": 1
+      },
+      "gooseworks-ai/goose-skills": {
+        "repo": "https://github.com/gooseworks-ai/goose-skills",
+        "commit": "94ec916",
+        "license": "no explicit license \u2014 referenced by link only",
+        "skills": 1
+      },
+      "secondsky/claude-skills": {
+        "repo": "https://github.com/secondsky/claude-skills",
+        "commit": "c4889f6",
+        "license": "MIT",
+        "skills": 1
+      },
+      "noobnooc/agent": {
+        "repo": "https://github.com/noobnooc/agent",
+        "commit": "dfdcf5b",
+        "license": "no explicit license \u2014 referenced by link only",
+        "skills": 1
+      }
+    },
+    "total_skills": 80,
+    "tiers": {
+      "core": 74,
+      "adjacent": 6
+    }
+  },
+  "provenance": {
+    "items": {
+      "esco": 35,
+      "onet": 153,
+      "jobads": 97,
+      "wiki_ai": 0,
+      "anthropic": 6,
+      "ai_skills": 179,
+      "stackx": 0
+    },
+    "share_percent": {
+      "esco": 7.4,
+      "onet": 32.6,
+      "jobads": 20.6,
+      "wiki_ai": 0.0,
+      "anthropic": 1.3,
+      "ai_skills": 38.1,
+      "stackx": 0.0
+    },
+    "method": "content items per source category"
+  },
+  "collar": "white",
+  "computer_work": true
+}
--- a/references/ai-skills.md
+++ b/references/ai-skills.md
@@ -0,0 +1,378 @@
+# External AI agent skills — flight-test-engineer
+
+Proven, publicly available AI agent skills mapped to this occupation.
+Nothing is copied from the sources: every entry is a name, a one-line
+summary and a link to the upstream skill package. Each section names
+its source repository, commit, license and retrieval date.
+
+**Tiers:** `core` = the skill directly exercises a top market hard
+skill, tool or method (from gated job-ad evidence) or an essential
+ESCO competence of this occupation; `adjacent` =
+plausibly useful, secondary. Entries are capped at 12 per source
+and 80 in total per occupation (core first,
+strongest matches survive); everything beyond the caps is excluded
+and logged in the pipeline audit trail, not in this package.
+
+_Matched deterministically (ISCO group + title/competence keywords,
+tiered against market evidence + ESCO essentials) by
+`pipeline/p5_enrich_ai_skills.py` on 2026-07-14._
+
+## Source: anthropics/skills
+
+- Repository: [https://github.com/anthropics/skills](https://github.com/anthropics/skills) (commit `f6656c1`, retrieved 2026-07-14)
+- License: Apache-2.0; the document skills (docx/pdf/pptx/xlsx) are source-available — see the LICENSE.txt in the upstream skill folder
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `webapp-testing` | adjacent | Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs. | [source](https://github.com/anthropics/skills/tree/main/skills/webapp-testing) |
+| `docx` | adjacent | Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files) or Word templates (.dotx files). Triggers include: any mention of 'Word doc', 'word document', '.docx', '.dotx', or requests to … | [source](https://github.com/anthropics/skills/tree/main/skills/docx) |
+| `pdf` | adjacent | Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating … | [source](https://github.com/anthropics/skills/tree/main/skills/pdf) |
+
+## Source: wshobson/agents
+
+- Repository: [https://github.com/wshobson/agents](https://github.com/wshobson/agents) (commit `6fd3247`, retrieved 2026-07-14)
+- License: MIT (c) Seth Hobson
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `performance-testing-review-test-automator (agent)` | core | Master AI-powered test automation with modern frameworks, self-healing tests, and comprehensive quality engineering. Build scalable testing strategies with advanced CI/CD integration. Use PROACTIVELY for testing automation or quality … | [source](https://github.com/wshobson/agents/tree/main/plugins/performance-testing-review/agents/test-automator.md) |
+| `performance-testing-review-performance-engineer (agent)` | core | Expert performance engineer specializing in modern observability, application optimization, and scalable system performance. Masters OpenTelemetry, distributed tracing, load testing, multi-tier caching, Core Web Vitals, and performance … | [source](https://github.com/wshobson/agents/tree/main/plugins/performance-testing-review/agents/performance-engineer.md) |
+| `api-testing-observability-api-documenter (agent)` | adjacent | Master API documentation with OpenAPI 3.1, AI-powered tools, and modern developer experience practices. Create interactive docs, generate SDKs, and build comprehensive developer portals. Use PROACTIVELY for API documentation or developer … | [source](https://github.com/wshobson/agents/tree/main/plugins/api-testing-observability/agents/api-documenter.md) |
+
+## Source: cypress-io/ai-toolkit
+
+- Repository: [https://github.com/cypress-io/ai-toolkit](https://github.com/cypress-io/ai-toolkit) (commit `9c9038e`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `cypress-explain` | core | Explains Cypress tests (E2E and component tests), and answers questions about Cypress use and behavior. Use when the user asks to explain how a test works, explain how Cypress works, review or critique a test without writing code. Apply … | [source](https://github.com/cypress-io/ai-toolkit/tree/9c9038e/skills/cypress-explain) |
+| `cypress-author` | adjacent | Creates, updates, and fixes Cypress tests (E2E/end-to-end and component tests). Use when the user asks to create tests, add tests, write tests, update tests, test this file/component, new spec, or fix a failing or flaky test. Apply even … | [source](https://github.com/cypress-io/ai-toolkit/tree/9c9038e/skills/cypress-author) |
+| `cypress-docs` | adjacent | Search and extract Cypress information from official documentation (docs.cypress.io, cypress.io); prefer LLM markdown under /llm/* and refuse unverified API or behavior claims. | [source](https://github.com/cypress-io/ai-toolkit/tree/9c9038e/skills/cypress-docs) |
+
+## Source: a5c-ai/babysitter
+
+- Repository: [https://github.com/a5c-ai/babysitter](https://github.com/a5c-ai/babysitter) (commit `44a5d58b`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `flight-test-planning` | core | Skill for comprehensive flight test planning and execution support | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/domains/science/aerospace-engineering/skills/flight-test-planning) |
+| `gatling-load-testing` | core | Expert skill for Gatling simulation development, load test execution, and performance analysis. Write Gatling simulations in Scala DSL, configure injection profiles and feeders, define assertions, analyze HTML reports, and integrate with … | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/performance-optimization/skills/gatling-load-testing) |
+| `propulsion-test-analysis` | core | Skill for propulsion system ground test data acquisition and analysis | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/domains/science/aerospace-engineering/skills/propulsion-test-analysis) |
+| `statistical-testing` | core | Apply statistical hypothesis testing, significance analysis, A/B test evaluation, and distribution comparisons for data science workflows. | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/data-science-ml/skills/statistical-testing) |
+| `A/B Test Design` | core | Statistical experiment design and analysis capabilities for product experimentation | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/product-management/skills/ab-test-design) |
+| `A/B Test Statistical Analyzer` | core | Performs statistical analysis for A/B testing experiments | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/data-engineering-analytics/skills/ab-test-statistical-analyzer) |
+| `test-planning` | core | Skill for comprehensive mechanical test plan development and execution support | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/domains/science/mechanical-engineering/skills/test-planning) |
+| `scope-logic-analyzer` | core | Test equipment integration for signal analysis (oscilloscope and logic analyzer) | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/embedded-systems/skills/scope-logic-analyzer) |
+| `docker-test-environments` | core | Docker-based test environment management for isolated, reproducible test execution. Create Docker Compose environments, manage test containers, configure service dependencies, and integrate with CI/CD pipelines. | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/qa-testing-automation/skills/docker-test-environments) |
+| `environmental-testing` | core | Skill for environmental test campaign planning and execution | [source](https://github.com/a5c-ai/babysitter/tree/44a5d58b/library/specializations/domains/science/aerospace-engineering/skills/environmental-testing) |
+
+## Source: affaan-m/everything-claude-code
+
+- Repository: [https://github.com/affaan-m/everything-claude-code](https://github.com/affaan-m/everything-claude-code) (commit `ed38744`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `python-testing` | core | Python testing best practices using pytest including fixtures, parametrization, mocking, coverage analysis, async testing, and test organization. Use when writing or improving Python tests. | [source](https://github.com/affaan-m/everything-claude-code/tree/ed38744/.kiro/skills/python-testing) |
+| `golang-testing` | core | Go testing best practices including table-driven tests, test helpers, benchmarking, race detection, coverage analysis, and integration testing patterns. Use when writing or improving Go tests. | [source](https://github.com/affaan-m/everything-claude-code/tree/ed38744/.kiro/skills/golang-testing) |
+
+## Source: AgriciDaniel/claude-ads
+
+- Repository: [https://github.com/AgriciDaniel/claude-ads](https://github.com/AgriciDaniel/claude-ads) (commit `669c760`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `ads-test` | core | Design and evaluate paid-ad experiments with hypotheses, randomization units, sample-size and duration assumptions, guardrails, platform experiment tools, analysis, and decision rules. Use for A/B test, split test, experiment design, … | [source](https://github.com/AgriciDaniel/claude-ads/tree/669c760/skills/ads-test) |
+
+## Source: alirezarezvani/claude-code-skill-factory
+
+- Repository: [https://github.com/alirezarezvani/claude-code-skill-factory](https://github.com/alirezarezvani/claude-code-skill-factory) (commit `ba18b31`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `tdd-guide` | core | Comprehensive Test Driven Development guide for engineering subagents with multi-framework support, coverage analysis, and intelligent test generation | [source](https://github.com/alirezarezvani/claude-code-skill-factory/tree/ba18b31/generated-skills/tdd-guide) |
+
+## Source: alirezarezvani/claude-skills
+
+- Repository: [https://github.com/alirezarezvani/claude-skills](https://github.com/alirezarezvani/claude-skills) (commit `0241f43`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `chaos-engineering` | core | Use when planning, running, or learning from chaos engineering experiments. Triggers on "chaos experiment", "fault injection", "gameday", "resilience test", "blast radius", "steady state", "abort criteria", "Chaos Toolkit", "Chaos Mesh", … | [source](https://github.com/alirezarezvani/claude-skills/tree/0241f43/engineering/chaos-engineering/skills/chaos-engineering) |
+
+## Source: brycewang-stanford/Auto-Empirical-Research-Skills
+
+- Repository: [https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills](https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills) (commit `85bf545`, retrieved 2026-07-14)
+- License: CC-BY-4.0
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `time-series` | core | Econometrics skill for time series analysis. Activates when the user asks about: "time series", "stationarity", "unit root test", "ADF test", "KPSS test", "ARIMA", "ARMA", "autocorrelation", "ACF", "PACF", "VAR model", "VECM", "Granger … | [source](https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/85bf545/skills/67-econfin-workflow-toolkit/time-series) |
+
+## Source: claude-world/director-mode-lite
+
+- Repository: [https://github.com/claude-world/director-mode-lite](https://github.com/claude-world/director-mode-lite) (commit `9d0c333`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `debugger` | core | Systematic debugging method: 5-step root-cause analysis (capture, isolate, hypothesize, investigate, fix & verify) plus common bug-pattern reference. Use when errors, exceptions, test failures, or unexpected behavior appear. Loaded … | [source](https://github.com/claude-world/director-mode-lite/tree/9d0c333/skills/debugger) |
+| `test-runner` | core | Test execution reference: framework detection (pytest/jest/vitest/go/cargo/junit) and correct run/coverage commands, plus failure-analysis steps. Use when running tests, analyzing test failures, or verifying coverage after code changes. | [source](https://github.com/claude-world/director-mode-lite/tree/9d0c333/skills/test-runner) |
+
+## Source: davila7/claude-code-templates
+
+- Repository: [https://github.com/davila7/claude-code-templates](https://github.com/davila7/claude-code-templates) (commit `fa79251`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `cobrapy` | core | Constraint-based metabolic modeling (COBRA). FBA, FVA, gene knockouts, flux sampling, SBML models, for systems biology and metabolic engineering analysis. | [source](https://github.com/davila7/claude-code-templates/tree/fa79251/cli-tool/components/skills/scientific/cobrapy) |
+| `ml-engineer` | core | Build production ML systems with PyTorch 2.x, TensorFlow, and modern ML frameworks. Implements model serving, feature engineering, A/B testing, and monitoring. | [source](https://github.com/davila7/claude-code-templates/tree/fa79251/cli-tool/components/skills/ai-research/ml-engineer) |
+| `senior-qa` | core | Comprehensive QA and testing skill for quality assurance, test automation, and testing strategies for ReactJS, NextJS, NodeJS applications. Includes test suite generation, coverage analysis, E2E testing setup, and quality metrics. Use when … | [source](https://github.com/davila7/claude-code-templates/tree/fa79251/cli-tool/components/skills/development/senior-qa) |
+| `statistical-analysis` | core | Statistical analysis toolkit. Hypothesis tests (t-test, ANOVA, chi-square), regression, correlation, Bayesian stats, power analysis, assumption checks, APA reporting, for academic research. | [source](https://github.com/davila7/claude-code-templates/tree/fa79251/cli-tool/components/skills/scientific/statistical-analysis) |
+
+## Source: dotnet/skills
+
+- Repository: [https://github.com/dotnet/skills](https://github.com/dotnet/skills) (commit `79a2ada`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `exp-mock-usage-analysis` | core | Audits .NET test mock usage by tracing each mock setup through the production code's execution path to find dead, unreachable, redundant, or replaceable mocks. Use when the user asks to audit mock usage, find unused or unnecessary mock … | [source](https://github.com/dotnet/skills/tree/79a2ada/plugins/dotnet-experimental/skills/exp-mock-usage-analysis) |
+| `binlog-generation` | core | Generate MSBuild binary logs (binlogs) for build diagnostics and analysis. USE FOR: adding /bl:{} to any dotnet build, test, pack, publish, or restore command to capture a full build execution trace, prerequisite for … | [source](https://github.com/dotnet/skills/tree/79a2ada/plugins/dotnet-msbuild/skills/binlog-generation) |
+| `test-gap-analysis` | core | Performs pseudo-mutation analysis on production code in any language to find gaps in existing tests. Use when the user asks to find weak or shallow tests, discover untested edge cases, or check whether tests would catch a bug — e.g. … | [source](https://github.com/dotnet/skills/tree/79a2ada/plugins/dotnet-test/skills/test-gap-analysis) |
+| `find-untested-sources` | core | Parse-only static analysis that pairs source files with the tests referencing them and emits JSON listing untested files ordered by API surface, each with a suggested_test_path. Roslyn engine for C#/.NET (namespace-aware), tree-sitter … | [source](https://github.com/dotnet/skills/tree/79a2ada/plugins/dotnet-test/skills/find-untested-sources) |
+| `test-analysis-extensions` | core | Provides file paths to language-specific reference files for the test ANALYSIS skills (assertion-quality, test-anti-patterns, test-gap-analysis, test-smell-detection, test-tagging). Call this skill to discover available extension files … | [source](https://github.com/dotnet/skills/tree/79a2ada/plugins/dotnet-test/skills/test-analysis-extensions) |
+
+## Source: eduardo-sl/go-agent-skills
+
+- Repository: [https://github.com/eduardo-sl/go-agent-skills](https://github.com/eduardo-sl/go-agent-skills) (commit `3c45d7f`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `go-test-quality` | core | Go testing patterns for production-grade code: subtests, test helpers, fixtures, golden files, httptest, testcontainers, property-based testing, and fuzz testing. Covers mocking strategies, test isolation, coverage analysis, and test … | [source](https://github.com/eduardo-sl/go-agent-skills/tree/3c45d7f/skills/(testing)/go-test-quality) |
+
+## Source: FlorianBruniaux/claude-code-ultimate-guide
+
+- Repository: [https://github.com/FlorianBruniaux/claude-code-ultimate-guide](https://github.com/FlorianBruniaux/claude-code-ultimate-guide) (commit `5395214`, retrieved 2026-07-14)
+- License: custom (see upstream LICENSE)
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `plan-pipeline-eng-review` | core | Engineering architecture gate: lock architecture, diagrams, edge cases, and test matrix before writing implementation code | [source](https://github.com/FlorianBruniaux/claude-code-ultimate-guide/tree/5395214/examples/skills/plan-pipeline/eng-review) |
+
+## Source: foryourhealth111-pixel/Vibe-Skills
+
+- Repository: [https://github.com/foryourhealth111-pixel/Vibe-Skills](https://github.com/foryourhealth111-pixel/Vibe-Skills) (commit `34429a8`, retrieved 2026-07-14)
+- License: Apache-2.0
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `statistical-analysis` | core | Statistical analysis toolkit. Hypothesis tests (t-test, ANOVA, chi-square), regression, correlation, Bayesian stats, power analysis, assumption checks, APA reporting, for academic research. | [source](https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/34429a8/bundled/skills/statistical-analysis) |
+| `metric-calculator` | core | Compute well-defined metrics from existing formulas, datasets, or test outputs. Use as an explicit/manual helper when the metric definition is already known, not for choosing the overall analysis owner or dashboard strategy. | [source](https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/34429a8/bundled/skills/metric-calculator) |
+
+## Source: gooseworks-ai/goose-skills
+
+- Repository: [https://github.com/gooseworks-ai/goose-skills](https://github.com/gooseworks-ai/goose-skills) (commit `94ec916`, retrieved 2026-07-14)
+- License: no explicit license — referenced by link only
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `ad-campaign-analyzer` | core | Analyze ad campaign performance data (Google, Meta, LinkedIn) to identify what's working, what's wasting budget, and specific cut/scale/test recommendations. Runs statistical analysis, funnel diagnostics, and multi-channel budget … | [source](https://github.com/gooseworks-ai/goose-skills/tree/94ec916/skills/ads/composites/ad-campaign-analyzer) |
+
+## Source: jeremylongshore/claude-code-plugins-plus-skills
+
+- Repository: [https://github.com/jeremylongshore/claude-code-plugins-plus-skills](https://github.com/jeremylongshore/claude-code-plugins-plus-skills) (commit `e112938a`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `running-chaos-tests` | core | Execute chaos engineering experiments to test system resilience. Use when performing specialized testing. Trigger with phrases like "run chaos tests", "test resilience", or "inject failures".  | [source](https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/e112938a/plugins/testing/chaos-engineering-toolkit/skills/running-chaos-tests) |
+| `trace` | core | Use when encountering bugs, test failures, runtime errors, broken builds, or "this doesn't work" reports. Systematic root-cause analysis before any patch — never blind-patches symptoms. Standalone, ends with a final-integration review of … | [source](https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/e112938a/plugins/ai-agency/hyperflow/skills/trace) |
+| `hyperflow-trace` | core | Hyperflow debugging. Use for bugs, test failures, runtime errors, broken builds, or "this doesn't work" reports — verbs like debug, "fix it", solve, "why is X failing", "Y is broken", or a pasted stack trace. Systematic root-cause analysis … | [source](https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/e112938a/plugins/ai-agency/hyperflow/templates/antigravity/skills/hyperflow-trace) |
+| `langchain-prompt-engineering` | core | Manage LangChain 1.0 prompts like code \u2014 LangSmith prompt hub versioning,\n\ XML-tag conventions for Claude, few-shot example selection, discriminated-union\n\ extraction schemas, and A/B test wiring. Use when taking ad-hoc prompts … | [source](https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/e112938a/plugins/saas-packs/langchain-py-pack/skills/langchain-prompt-engineering) |
+| `lumen` | core | Product analyst — metrics architecture, funnel analysis, A/B test design, retention, and growth measurement. | [source](https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/e112938a/plugins/ai-agency/tonone/skills/lumen) |
+
+## Source: K-Dense-AI/claude-scientific-skills
+
+- Repository: [https://github.com/K-Dense-AI/claude-scientific-skills](https://github.com/K-Dense-AI/claude-scientific-skills) (commit `4d97e29`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `statistical-analysis` | core | Guided statistical analysis for research data - test selection, assumption checking, effect sizes, power analysis, Bayesian alternatives, and APA-formatted reporting. Use whenever a user wants to compare groups, test a hypothesis, analyze … | [source](https://github.com/K-Dense-AI/claude-scientific-skills/tree/4d97e29/skills/statistical-analysis) |
+
+## Source: K-Dense-AI/scientific-agent-skills
+
+- Repository: [https://github.com/K-Dense-AI/scientific-agent-skills](https://github.com/K-Dense-AI/scientific-agent-skills) (commit `4d97e29`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `statistical-analysis` | core | Guided statistical analysis for research data - test selection, assumption checking, effect sizes, power analysis, Bayesian alternatives, and APA-formatted reporting. Use whenever a user wants to compare groups, test a hypothesis, analyze … | [source](https://github.com/K-Dense-AI/scientific-agent-skills/tree/4d97e29/skills/statistical-analysis) |
+
+## Source: mhattingpete/claude-skills-marketplace
+
+- Repository: [https://github.com/mhattingpete/claude-skills-marketplace](https://github.com/mhattingpete/claude-skills-marketplace) (commit `3fa16a9`, retrieved 2026-07-14)
+- License: Apache-2.0
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `code-auditor` | core | Performs comprehensive codebase analysis covering architecture, code quality, security, performance, testing, and maintainability. Use when user wants to audit code quality, identify technical debt, find security issues, assess test … | [source](https://github.com/mhattingpete/claude-skills-marketplace/tree/3fa16a9/productivity-skills-plugin/skills/code-auditor) |
+
+## Source: mikeyobrien/ralph-orchestrator
+
+- Repository: [https://github.com/mikeyobrien/ralph-orchestrator](https://github.com/mikeyobrien/ralph-orchestrator) (commit `407cb96`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `code-assist` | core | Guides implementation of code tasks using test-driven development in an Explore, Plan, Code, Commit workflow. Acts as a Technical Implementation Partner and TDD Coach — following existing patterns, avoiding over-engineering, and producing … | [source](https://github.com/mikeyobrien/ralph-orchestrator/tree/407cb96/.claude/skills/code-assist) |
+
+## Source: mukul975/Anthropic-Cybersecurity-Skills
+
+- Repository: [https://github.com/mukul975/Anthropic-Cybersecurity-Skills](https://github.com/mukul975/Anthropic-Cybersecurity-Skills) (commit `673da1f`, retrieved 2026-07-14)
+- License: Apache-2.0
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `conducting-social-engineering-penetration-test` | core | Design and execute a social engineering penetration test including phishing, vishing, smishing, and physical pretexting campaigns to measure human security resilience and identify training gaps. | [source](https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/673da1f/skills/conducting-social-engineering-penetration-test) |
+
+## Source: nanocoai/nanoclaw
+
+- Repository: [https://github.com/nanocoai/nanoclaw](https://github.com/nanocoai/nanoclaw) (commit `da9a74f`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `frontend-engineer` | core | Pro frontend engineering discipline. Enforces build-test-verify workflow for every web project. Never declare done until the site is built, tested, responsive, accessible, and visually verified in a real browser. Use alongside vercel-cli … | [source](https://github.com/nanocoai/nanoclaw/tree/da9a74f/container/skills/frontend-engineer) |
+
+## Source: NeoLabHQ/context-engineering-kit
+
+- Repository: [https://github.com/NeoLabHQ/context-engineering-kit](https://github.com/NeoLabHQ/context-engineering-kit) (commit `e61511b`, retrieved 2026-07-14)
+- License: GPL
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `test-prompt` | core | Use when creating or editing any prompt (commands, hooks, skills, subagent instructions) to verify it produces desired behavior - applies RED-GREEN-REFACTOR cycle to prompt engineering using subagents for isolated testing | [source](https://github.com/NeoLabHQ/context-engineering-kit/tree/e61511b/plugins/customaize-agent/skills/test-prompt) |
+
+## Source: nexscope-ai/eCommerce-Skills
+
+- Repository: [https://github.com/nexscope-ai/eCommerce-Skills](https://github.com/nexscope-ai/eCommerce-Skills) (commit `56f3288`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `price-optimization-tool` | core | Evaluate ecommerce price candidates using unit economics, historical observations, elasticity analysis, scenario modeling, and controlled experiments. Use when a seller asks what price to test, how price changes could affect contribution … | [source](https://github.com/nexscope-ai/eCommerce-Skills/tree/56f3288/price-optimization-tool) |
+
+## Source: noobnooc/agent
+
+- Repository: [https://github.com/noobnooc/agent](https://github.com/noobnooc/agent) (commit `dfdcf5b`, retrieved 2026-07-14)
+- License: no explicit license — referenced by link only
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `better-codex` | core | Behavioral guardrails for Codex coding work based on common user complaints. Use when Codex is asked to implement, modify, debug, review, test, or operate on a codebase and should avoid unsafe scope expansion, stale edits, fake completion, … | [source](https://github.com/noobnooc/agent/tree/dfdcf5b/skills/better-codex) |
+
+## Source: nWave-ai/nWave
+
+- Repository: [https://github.com/nWave-ai/nWave](https://github.com/nWave-ai/nWave) (commit `1d0f13c`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `nw-bugfix` | core | Bug fix workflow: root cause analysis → user review → regression test + fix via TDD | [source](https://github.com/nWave-ai/nWave/tree/1d0f13c/nWave/skills/nw-bugfix) |
+| `nw-interviewing-techniques` | core | Mom Test questioning toolkit, JTBD analysis, interview conduct, assumption testing framework, and hypothesis design | [source](https://github.com/nWave-ai/nWave/tree/1d0f13c/nWave/skills/nw-interviewing-techniques) |
+| `nw-jtbd-bdd-integration` | core | Translating JTBD analysis to BDD scenarios - job story to Given-When-Then patterns, forces-based test discovery, job-map-based test discovery, and property-shaped criteria | [source](https://github.com/nWave-ai/nWave/tree/1d0f13c/nWave/skills/nw-jtbd-bdd-integration) |
+| `nw-tdd-review-enforcement` | core | Test design mandate enforcement, test budget validation, TDD phase validation (3-phase canon per ADR-025), and external validity checks for the software crafter reviewer | [source](https://github.com/nWave-ai/nWave/tree/1d0f13c/nWave/skills/nw-tdd-review-enforcement) |
+
+## Source: oliver-kriska/claude-elixir-phoenix
+
+- Repository: [https://github.com/oliver-kriska/claude-elixir-phoenix](https://github.com/oliver-kriska/claude-elixir-phoenix) (commit `d6b21b5`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `phx:investigate` | core | Investigate bugs and errors in Elixir/Phoenix — root-cause analysis for crashes, exceptions, stack traces, test failures. Use --parallel for deep 4-track investigation. | [source](https://github.com/oliver-kriska/claude-elixir-phoenix/tree/d6b21b5/plugins/elixir-phoenix/skills/investigate) |
+
+## Source: omergocmen/vibe-coder-kit
+
+- Repository: [https://github.com/omergocmen/vibe-coder-kit](https://github.com/omergocmen/vibe-coder-kit) (commit `76c5b30`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `architecture-review` | core | Before committing to an implementation plan, run this skill to stress-test the proposed architecture. Catches over-engineering, circular dependencies, missing failure modes, security gaps, and scalability cliffs — before any code is … | [source](https://github.com/omergocmen/vibe-coder-kit/tree/76c5b30/.agent/skills/architecture-review) |
+
+## Source: rampstackco/claude-skills
+
+- Repository: [https://github.com/rampstackco/claude-skills](https://github.com/rampstackco/claude-skills) (commit `bc6d961`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `cro-optimization` | core | Run conversion rate optimization through hypothesis-driven testing including audit, hypothesis generation, test design, statistical analysis, and rollout decisions. Use this skill whenever the user wants to optimize conversion, run A/B … | [source](https://github.com/rampstackco/claude-skills/tree/bc6d961/skills/cro-optimization) |
+
+## Source: secondsky/claude-skills
+
+- Repository: [https://github.com/secondsky/claude-skills](https://github.com/secondsky/claude-skills) (commit `c4889f6`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `test-quality-analysis` | core | Detect test smells, overmocking, flaky tests, and coverage issues. Analyze test effectiveness, maintainability, and reliability. Use when reviewing tests or improving test quality. | [source](https://github.com/secondsky/claude-skills/tree/c4889f6/plugins/test-quality-analysis/skills/test-quality-analysis) |
+
+## Source: trailofbits/skills
+
+- Repository: [https://github.com/trailofbits/skills](https://github.com/trailofbits/skills) (commit `cfe5d7b`, retrieved 2026-07-14)
+- License: custom (see upstream LICENSE)
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `audit-prep-assistant` | core | Prepares codebases for security review using Trail of Bits' checklist. Helps set review goals, runs static analysis tools, increases test coverage, removes dead code, ensures accessibility, and generates documentation (flowcharts, user … | [source](https://github.com/trailofbits/skills/tree/cfe5d7b/plugins/building-secure-contracts/skills/audit-prep-assistant) |
+| `differential-review` | core | Performs security-focused differential review of code changes (PRs, commits, diffs). Adapts analysis depth to codebase size, uses git history for context, calculates blast radius, checks test coverage, and generates comprehensive markdown … | [source](https://github.com/trailofbits/skills/tree/cfe5d7b/plugins/differential-review/skills/differential-review) |
+
+## Source: vibeeval/vibecosystem
+
+- Repository: [https://github.com/vibeeval/vibecosystem](https://github.com/vibeeval/vibecosystem) (commit `cea9462`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `experiment-loop` | core | Autonomous experiment loop: hypothesize > modify > test > evaluate > keep/discard > repeat. Run N experiments automatically with measurable metrics. Works for performance optimization, A/B testing, prompt engineering, and any measurable … | [source](https://github.com/vibeeval/vibecosystem/tree/cea9462/skills/experiment-loop) |
+| `test-strategy` | core | Test pyramid decision matrix, coverage targets, when to write which test type, mock vs real dependency decisions, and test ROI analysis. | [source](https://github.com/vibeeval/vibecosystem/tree/cea9462/skills/test-strategy) |
+
+## Source: zebbern/claude-code-guide
+
+- Repository: [https://github.com/zebbern/claude-code-guide](https://github.com/zebbern/claude-code-guide) (commit `d2c5280`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `test-suite-architect` | core | This skill should be used when establishing comprehensive QA testing processes for any software project. Use when creating test strategies, writing test cases following Google Testing Standards, executing test plans, tracking bugs with … | [source](https://github.com/zebbern/claude-code-guide/tree/d2c5280/skills/test-suite-architect) |
+
+## Source: LambdaTest/agent-skills
+
+- Repository: [https://github.com/LambdaTest/agent-skills](https://github.com/LambdaTest/agent-skills) (commit `54824d6`, retrieved 2026-07-14)
+- License: MIT
+
+| Skill | Tier | What it adds | Upstream |
+|---|---|---|---|
+| `cypress-skill` | core | Generates production-grade Cypress E2E and component tests in JavaScript or TypeScript. Supports local execution and TestMu AI cloud. Use when the user asks to write Cypress tests, set up Cypress, test with cy commands, or mentions … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/cypress-skill) |
+| `flutter-testing-skill` | core | Generates Flutter widget tests, integration tests, and golden tests in Dart. Supports local execution and TestMu AI cloud for real device testing. Use when user mentions "Flutter", "widget test", "WidgetTester", "testWidgets", … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/flutter-testing-skill) |
+| `hyperexecute-skill` | core | Operates HyperExecute end-to-end for TestMu AI/LambdaTest cloud test execution: analyze projects, create YAML, validate locally, run CLI jobs, debug failures, and wire CI. Use when the user mentions HyperExecute, hyperexecute.yaml, … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/hyperexecute-skill) |
+| `pytest-skill` | core | Generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns. Use when user mentions "pytest", "conftest", "@pytest.fixture", "@pytest.mark", "Python test". Triggers on: "pytest", … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/pytest-skill) |
+| `behave-skill` | core | Generates Behave BDD tests for Python with Gherkin feature files and step implementations. Use when user mentions "Behave", "Python BDD", "Python Gherkin". Triggers on: "Behave", "Python BDD", "behave test", "Python feature file". | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/behave-skill) |
+| `gauge-skill` | core | Generates Gauge test specifications in Markdown with step implementations in Java, Python, JS, or Ruby. ThoughtWorks' test automation framework. Use when user mentions "Gauge", "spec file", "## Scenario", "step implementation". Triggers … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/gauge-skill) |
+| `lettuce-skill` | core | Generates Lettuce BDD tests for Python with feature files and step definitions. Note: Lettuce is legacy/unmaintained; consider Behave for new projects. Use when user specifically mentions "Lettuce". Triggers on: "Lettuce", "lettuce test", … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/lettuce-skill) |
+| `robot-framework-skill` | core | Generates Robot Framework tests in keyword-driven syntax with Python. Supports SeleniumLibrary, RequestsLibrary, and custom keywords. Use when user mentions "Robot Framework", "*** Test Cases ***", "SeleniumLibrary", ".robot file". … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/robot-framework-skill) |
+| `playwright-skill` | core | Generates production-grade Playwright automation scripts and E2E tests in TypeScript, JavaScript, Python, Java, or C#. Supports local execution and TestMu AI cloud across 3000+ browser/OS combinations and real mobile devices. Use when the … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/playwright-skill) |
+| `selenium-skill` | core | Generates production-grade Selenium WebDriver automation scripts and tests in Java, Python, JavaScript, C#, Ruby, or PHP. Supports local execution and TestMu AI cloud with 3000+ browser/OS combinations. Use when the user asks to write … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/selenium-skill) |
+| `appium-skill` | core | Generates production-grade Appium mobile automation scripts for Android and iOS in Java, Python, or JavaScript. Supports real device and emulator testing locally and on TestMu AI cloud with 100+ real devices. Use when the user asks to … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/appium-skill) |
+| `unittest-skill` | core | Generates Python unittest tests. Built-in testing framework with TestCase, setUp/tearDown, and assertion methods. Use when user mentions "unittest", "TestCase", "self.assertEqual", "Python unittest". Triggers on: "unittest", "TestCase", … | [source](https://github.com/LambdaTest/agent-skills/tree/54824d6/unittest-skill) |
--- a/references/market.md
+++ b/references/market.md
@@ -0,0 +1,147 @@
+# Market evidence report — flight-test-engineer
+
+Source: **54 real job ads** (JSearch API, countries: us 54), extracted into the MSSQL evidence store; as of 2026-07-12.
+This report contains extracted, aggregated facts only — no ad text is
+reproduced (copyright / platform terms).
+
+## Seniority distribution
+
+| Seniority | Ads | Share |
+|---|---|---|
+| mid | 36 | 67 % |
+| senior | 10 | 19 % |
+| junior | 5 | 9 % |
+| lead | 2 | 4 % |
+| n/a | 1 | 2 % |
+
+## Tools — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | Matlab | 12 | 22 % |
+| 2 | Python | 8 | 15 % |
+
+## Hard skills — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | flight test planning | 25 | 46 % |
+| 2 | data analysis | 20 | 37 % |
+| 3 | test execution | 10 | 19 % |
+| 4 | test planning | 10 | 19 % |
+| 5 | troubleshooting | 10 | 19 % |
+| 6 | flight test engineering | 6 | 11 % |
+| 7 | aircraft maintenance | 5 | 9 % |
+| 8 | configuration management | 5 | 9 % |
+| 9 | risk assessment | 5 | 9 % |
+| 10 | technical documentation | 5 | 9 % |
+| 11 | test procedure development | 5 | 9 % |
+| 12 | engineering analysis | 4 | 7 % |
+| 13 | hazard analysis | 4 | 7 % |
+| 14 | root cause investigation | 4 | 7 % |
+| 15 | system validation | 4 | 7 % |
+| 16 | technical analysis | 4 | 7 % |
+| 17 | test data analysis | 4 | 7 % |
+| 18 | data acquisition | 3 | 6 % |
+| 19 | data review | 3 | 6 % |
+| 20 | mechanical systems engineering | 3 | 6 % |
+| 21 | regulatory compliance | 3 | 6 % |
+| 22 | system evaluation | 3 | 6 % |
+| 23 | systems engineering | 3 | 6 % |
+| 24 | test engineering | 3 | 6 % |
+
+## Methods — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | ARP 4754 processes | 4 | 7 % |
+| 2 | flight test execution | 4 | 7 % |
+| 3 | test readiness reviews | 4 | 7 % |
+| 4 | air vehicle test and evaluation | 3 | 6 % |
+
+## Responsibilities — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | flight test execution | 9 | 17 % |
+| 2 | data analysis | 7 | 13 % |
+| 3 | data collection | 4 | 7 % |
+| 4 | report preparation | 4 | 7 % |
+| 5 | test execution | 4 | 7 % |
+| 6 | test plan development | 4 | 7 % |
+| 7 | aircraft component installation | 3 | 6 % |
+| 8 | flight test plan development | 3 | 6 % |
+| 9 | post-flight reporting | 3 | 6 % |
+| 10 | quality auditing | 3 | 6 % |
+
+## Regional breakdown
+
+> **Corpus note:** 54 relevant ads in total — below the 100-ad target for a fully reliable ranking. Percentages above should be read as indicative.
+
+### US (us)
+
+54 ads.
+
+**Top hard skills:**
+
+- flight test planning — 46 % (25 ads)
+- data analysis — 37 % (20 ads)
+- test execution — 19 % (10 ads)
+- test planning — 19 % (10 ads)
+- troubleshooting — 19 % (10 ads)
+- flight test engineering — 11 % (6 ads)
+- aircraft maintenance — 9 % (5 ads)
+- configuration management — 9 % (5 ads)
+- risk assessment — 9 % (5 ads)
+- technical documentation — 9 % (5 ads)
+
+**Top tools:**
+
+- Matlab — 22 % (12 ads)
+- Python — 15 % (8 ads)
+- data acquisition systems — 4 % (2 ads)
+- telemetry — 4 % (2 ads)
+- telemetry systems — 4 % (2 ads)
+
+**Seniority:** mid 67 % · senior 19 % · junior 9 % · lead 4 % · n/a 2 %
+
+### UK (gb)
+
+**Insufficient evidence** — 0 ads (minimum for a regional ranking: 30). No ranking is reported for this region.
+
+### EU/DACH (de, at, ch, nl)
+
+**Insufficient evidence** — 0 ads (minimum for a regional ranking: 30). No ranking is reported for this region.
+
+
+## Job title variants in the market
+
+| Title | Ads |
+|---|---|
+| Flight Test Engineer | 14 |
+| Associate Mechanical Systems Flight Test Engineer | 3 |
+| Senior Flight Test Engineer | 3 |
+| Senior Flight Test Engineer (Flight Test Technical Expert) | 2 |
+| Airframe & Actuators - Test Engineer (Actuators/Mechanical Systems) | 1 |
+| Experienced Flight Test Instrumentation Engineer | 1 |
+| Experimental Flight Test Instrumentation and Data Systems Manager | 1 |
+| F-16 Flight Test Engineer | 1 |
+| Flight Test Engineer - Autonomous | 1 |
+| FLIGHT TEST ENGINEER - Contractor/Consultant | 1 |
+| Flight Test Engineer - Eustis TDD (PART TIME) | 1 |
+| Flight Test Engineer (Lead or Senior) | 1 |
+| Flight Test Engineer (Level 4) | 1 |
+| Flight Test Engineer (PL) | 1 |
+| Flight Test Engineer and CAM (Level 5) | 1 |
+| Flight Test Engineer Sr | 1 |
+| Flight Test Engineer/ Principal Flight Test Engineer – Unmanned Air Vehicles | 1 |
+| Flight Test Engineering Planner | 1 |
+| Flight Test Instrumentation Engineer - Level 4 | 1 |
+| Flight Test Tech | 1 |
+| Flight Test Tech – Secret Clearance (SkillBridge) | 1 |
+| Flight Test Tech 3/4 | 1 |
+| Flight Test Technician | 1 |
+| Flight Test Technician — Unlimited PTO & Stock Options | 1 |
+| Flight Test Technician , Secret Clearance, Travel | 1 |
+
+Methodology: entities extracted per ad ({hard_skills, tools, methods, responsibilities, seniority}), normalized, counted as DISTINCT ads per entity; report threshold ≥ 3 ads. Headline sections in skills.md/tools.md use the stricter ≥ 20 % threshold.
--- a/references/profile.md
+++ b/references/profile.md
@@ -0,0 +1,37 @@
+# Occupation profile — flight test engineer
+
+- **ESCO URI:** http://data.europa.eu/esco/occupation/608edf30-fe37-4ae5-bdd1-2d3a8fd347bd
+- **ESCO code:** 2152.1.2
+- **ISCO-08 group:** 2152 — Electronics engineers
+- **O*NET-SOC:** 17-2112.02 — Validation Engineers (match: closeMatch)
+
+## Description (ESCO)
+
+Flight test engineers work with other systems engineers to plan the tests in detail and to make sure that the recording systems are installed for the required data parameters. They analyse the data collected during test flights and produce reports for individual test phases and for the final flight test. They are also responsible for the safety of the test operations.
+
+## Definition
+
+nan
+
+## Alternative labels
+
+- flight test technology specialist
+- flight test technician
+- flight test performance engineer
+- flight test engineering expert
+- test and evaluation engineer
+- CFD engineer
+- flight test engineering consultant
+- flight test research engineer
+- flight test technologist
+- flight test engineering specialist
+- aircraft test engineer
+- flight testing engineer
+- flight test instrumentation engineer
+- flight test data engineer
+- flight test engineering adviser
+- flight test technology expert
+- aeroplane test engineer
+- flight test design engineer
+- FTE
+- flight test safety engineer
--- a/references/skills.md
+++ b/references/skills.md
@@ -0,0 +1,59 @@
+# Competences — flight test engineer
+
+Source: ESCO v1.2.1 occupation-skill relations (http://data.europa.eu/esco/occupation/608edf30-fe37-4ae5-bdd1-2d3a8fd347bd).
+
+## Essential
+
+- **adjust engineering designs** (skill/competence)
+- **aircraft flight control systems** (knowledge)
+- **analyse test data** (skill/competence)
+- **approve engineering design** (skill/competence)
+- **aviation meteorology** (knowledge)
+- **common aviation safety regulations** (knowledge)
+- **engineering principles** (knowledge)
+- **engineering processes** (knowledge)
+- **ensure aircraft compliance with regulation** (skill/competence)
+- **industrial engineering** (knowledge)
+- **manufacturing processes** (knowledge)
+- **operate radio navigation instruments** (skill/competence)
+- **operate two-way radio systems** (skill/competence)
+- **oversee aircraft sensor and recording systems** (skill/competence)
+- **perform scientific research** (skill/competence)
+- **plan test flights** (skill/competence)
+- **production processes** (knowledge)
+- **technical drawings** (knowledge)
+- **use technical drawing software** (skill/competence)
+
+## Optional
+
+- aerodynamics (knowledge)
+- aerospace engineering (knowledge)
+- conduct performance tests (skill/competence)
+- electrical engineering (knowledge)
+- electronics (knowledge)
+- inspect aircraft manufacturing (skill/competence)
+- instrumentation engineering (knowledge)
+- instrumentation equipment (knowledge)
+- mechanical engineering (knowledge)
+- operate cockpit control panels (skill/competence)
+- perform flight manoeuvres (skill/competence)
+- perform routine flight operations checks (skill/competence)
+- perform take off and landing (skill/competence)
+- record test data (skill/competence)
+- visual flight rules (knowledge)
+
+<!-- market-evidence -->
+
+## Market evidence (job-ad analysis, 54 ads, as of 2026-07-12)
+
+Share of analyzed job ads mentioning the item (threshold ≥ 20 %). Source: JSearch/Adzuna APIs.
+
+### Hard skills
+
+- flight test planning — **46 %**
+- data analysis — **37 %**
+- test execution — **19 %**
+- test planning — **19 %**
+- troubleshooting — **19 %**
+
+<!-- market-evidence -->
--- a/references/tasks.md
+++ b/references/tasks.md
@@ -0,0 +1,49 @@
+# Tasks & work activities — flight test engineer
+
+Source: O*NET 30.3, occupation 17-2112.02 (Validation Engineers).
+
+## Task statements
+
+- **[Core]** Conduct validation or qualification tests of new or existing processes, equipment, or software in accordance with internal protocols or external standards.
+- **[Core]** Design validation study features, such as sampling, testing, or analytical methodologies.
+- **[Core]** Develop validation master plans, process flow diagrams, test cases, or standard operating procedures.
+- **[Core]** Prepare validation or performance qualification protocols for new or modified manufacturing processes, systems, or equipment for production of pharmaceuticals, electronics, or other products.
+- **[Core]** Analyze validation test data to determine whether systems or processes have met validation criteria or to identify root causes of production problems.
+- **[Core]** Conduct audits of validation or performance qualification processes to ensure compliance with internal or regulatory requirements.
+- **[Core]** Create, populate, or maintain databases for tracking validation activities, test results, or validated systems.
+- **[Core]** Direct validation activities, such as protocol creation or testing.
+- **[Core]** Prepare detailed reports or design statements, based on results of validation and qualification tests or reviews of procedures and protocols.
+- **[Core]** Resolve testing problems by modifying testing methods or revising test objectives and standards.
+- **[Core]** Assist in training equipment operators or other staff on validation protocols and standard operating procedures.
+- **[Core]** Communicate with regulatory agencies regarding compliance documentation or validation results.
+- **[Core]** Coordinate the implementation or scheduling of validation testing with affected departments and personnel.
+- **[Core]** Maintain validation test equipment.
+- **[Core]** Participate in internal or external training programs to maintain knowledge of validation principles, industry trends, or novel technologies.
+- **[Core]** Prepare, maintain, or review validation and compliance documentation, such as engineering change notices, schematics, or protocols.
+- **[Core]** Validate or characterize sustainable or environmentally friendly products, using electronic testing platforms.
+- **[Core]** Study product characteristics or customer requirements to determine validation objectives and standards.
+- **[Core]** Recommend resolution of identified deviations from established product or process standards.
+- **[Core]** Draw samples of raw materials, intermediate products, or finished products for validation testing.
+- **[Supplemental]** Devise automated lab validation test stations or other test fixtures or equipment.
+
+## Detailed work activities
+
+- Analyze test or validation data.
+- Collect samples of raw materials or finished products.
+- Communicate technical information to suppliers, contractors, or regulatory agencies.
+- Conduct validation tests of equipment or processes.
+- Design electronic or computer equipment or instrumentation.
+- Devise research or testing protocols.
+- Direct quality control activities.
+- Document technical design details.
+- Inspect finished products to locate flaws.
+- Inspect operational processes.
+- Maintain operational records or records systems.
+- Maintain test equipment.
+- Operate computer systems.
+- Prepare detailed work plans.
+- Recommend technical design or process changes to improve efficiency, quality, or performance.
+- Resolve operational performance problems.
+- Review technical documents to plan work.
+- Train personnel on proper operational procedures.
+- Update technical knowledge.
--- a/references/tools.md
+++ b/references/tools.md
@@ -0,0 +1,130 @@
+# Tools & technology — flight test engineer
+
+Source: O*NET 30.3 'Software Skills' for 17-2112.02.
+
+| Software | Category | Hot technology |
+|---|---|---|
+| The MathWorks MATLAB | Analytical or scientific software | yes |
+| Docker | Application server software | yes |
+| GitHub | Application server software | yes |
+| Kubernetes | Application server software | yes |
+| Red Hat OpenShift | Application server software | yes |
+| Microsoft Power BI | Business intelligence and data analysis software | yes |
+| Amazon Web Services AWS CloudFormation | Cloud-based management software | yes |
+| Splunk Enterprise | Cloud-based management software | yes |
+| Dassault Systemes SolidWorks | Computer aided design CAD software | yes |
+| Chef | Configuration management software | yes |
+| IBM Terraform | Configuration management software | yes |
+| Puppet | Configuration management software | yes |
+| Atlassian JIRA | Content workflow software | yes |
+| Amazon DynamoDB | Data base management system software | yes |
+| Apache Cassandra | Data base management system software | yes |
+| Elasticsearch | Data base management system software | yes |
+| MongoDB | Data base management system software | yes |
+| MySQL | Data base management system software | yes |
+| NoSQL | Data base management system software | yes |
+| Teradata Database | Data base management system software | yes |
+| Amazon Elastic Compute Cloud EC2 | Data base user interface and query software | yes |
+| Amazon Web Services AWS software | Data base user interface and query software | yes |
+| Microsoft Access | Data base user interface and query software | yes |
+| Microsoft SQL Server | Data base user interface and query software | yes |
+| Prometheus | Data base user interface and query software | yes |
+| Structured query language SQL | Data base user interface and query software | yes |
+| Apache Kafka | Development environment software | yes |
+| Apache Maven | Development environment software | yes |
+| C | Development environment software | yes |
+| Go | Development environment software | yes |
+| Microsoft Azure software | Development environment software | yes |
+| Microsoft PowerShell | Development environment software | yes |
+| Microsoft Visual Basic | Development environment software | yes |
+| Microsoft Visual Studio | Development environment software | yes |
+| Ruby | Development environment software | yes |
+| Microsoft Outlook | Electronic mail software | yes |
+| Extensible markup language XML | Enterprise application integration software | yes |
+| Jenkins CI | Enterprise application integration software | yes |
+| Microsoft Power Automate | Enterprise application integration software | yes |
+| Microsoft Power Platform software | Enterprise application integration software | yes |
+| Ansible software | Expert system software | yes |
+| Apache Subversion SVN | File versioning software | yes |
+| Git | File versioning software | yes |
+| Grafana Labs Grafana Cloud | Graphical user interface development software | yes |
+| C# | Object or component oriented development software | yes |
+| C++ | Object or component oriented development software | yes |
+| Oracle Java | Object or component oriented development software | yes |
+| Perl | Object or component oriented development software | yes |
+| Python | Object or component oriented development software | yes |
+| R | Object or component oriented development software | yes |
+| Scala | Object or component oriented development software | yes |
+| PostgreSQL | Object oriented data base management software | yes |
+| Microsoft Office software | Office suite software | yes |
+| Bash | Operating system software | yes |
+| Linux | Operating system software | yes |
+| Microsoft Windows | Operating system software | yes |
+| Red Hat Enterprise Linux | Operating system software | yes |
+| Shell script | Operating system software | yes |
+| UNIX | Operating system software | yes |
+| UNIX Shell | Operating system software | yes |
+| Microsoft PowerPoint | Presentation software | yes |
+| Microsoft Visio | Process mapping and design software | yes |
+| JUnit | Program testing software | yes |
+| Selenium | Program testing software | yes |
+| Microsoft Project | Project management software | yes |
+| Microsoft Excel | Spreadsheet software | yes |
+| Apache Tomcat | Web platform development software | yes |
+| Django | Web platform development software | yes |
+| JavaScript | Web platform development software | yes |
+| Node.js | Web platform development software | yes |
+| PHP | Web platform development software | yes |
+| Microsoft Word | Word processing software | yes |
+| Cadence Incisive Enterprise Simulator | Analytical or scientific software |  |
+| Cadence Incisive Enterprise Specman Elite Testbench | Analytical or scientific software |  |
+| IndySoft Gage InSite Enterprise | Analytical or scientific software |  |
+| Laboratory information management system LIMS | Analytical or scientific software |  |
+| Logic simulators | Analytical or scientific software |  |
+| Minitab | Analytical or scientific software |  |
+| QUALCOMM eXtensible Diagnostic Monitor QxDM | Analytical or scientific software |  |
+| Simulation program with integrated circuit emphasis SPICE | Analytical or scientific software |  |
+| Simulation software | Analytical or scientific software |  |
+| Statistical software | Analytical or scientific software |  |
+| Synopsys electronic design software | Analytical or scientific software |  |
+| Red Hat WildFly | Application server software |  |
+| Sparta Systems TrackWise | Compliance software |  |
+| Dassault Systemes CATIA | Computer aided design CAD software |  |
+| PTC Creo Parametric | Computer aided design CAD software |  |
+| Perforce Helix software | Configuration management software |  |
+| Apache Solr | Data base management system software |  |
+| Structure query language SQL | Data base user interface and query software |  |
+| Apache Ant | Development environment software |  |
+| IBM Rational ClearQuest | Development environment software |  |
+| National Instruments LabVIEW | Development environment software |  |
+| Verilog | Development environment software |  |
+| Very high-speed integrated circuit VHSIC hardware description language VHDL | Development environment software |  |
+| EMC Documentum | Document management software |  |
+| Email software | Electronic mail software |  |
+| IBM Notes | Electronic mail software |  |
+| Atlassian Bamboo | Enterprise application integration software |  |
+| GE Intelligent Platforms Proficy HMI/SCADA iFIX | Industrial control software |  |
+| Nagios | Network monitoring software |  |
+| Wireshark | Network monitoring software |  |
+| Virtual private networking VPN software | Network security and virtual private network VPN equipment software |  |
+| Apache Groovy | Object or component oriented development software |  |
+| Ubuntu | Operating system software |  |
+| Apache HTTP Server | Portal server software |  |
+| Bugzilla | Program testing software |  |
+| Hewlett Packard LoadRunner | Program testing software |  |
+| Hewlett Packard QuickTest Professional | Program testing software |  |
+| Windows kernel debuggers | Program testing software |  |
+| Apache Struts | Web platform development software |  |
+| Ruby on Rails | Web platform development software |  |
+
+<!-- market-evidence -->
+
+## Market evidence (job-ad analysis, 54 ads, as of 2026-07-12)
+
+Share of analyzed job ads mentioning the item (threshold ≥ 20 %). Source: JSearch/Adzuna APIs.
+
+### Tools
+
+- Matlab — **22 %**
+
+<!-- market-evidence -->