[rig-tasks] Add 10 rig samples — 2026-07-28

[github-actions]

Summary

Added 10 new rig sample files to skills/rig/samples/.

#	File	Description	Typecheck
1	290-commit-churn-classifier.md	Commit churn classifier with steering+repair addons	pass
2	291-npm-package-size-estimator.md	NPM package size estimator with defineTool tier rating	pass
3	292-ts-branch-coverage-analyzer.md	TypeScript branch coverage analyzer with branchAnalyzer subagent	pass
4	293-env-variable-type-inferrer.md	Env variable type inferrer from .env.example	pass
5	294-makefile-target-extractor.md	Makefile target extractor with phony/real classification	pass
6	295-test-fixture-generator.md	Test fixture generator with signatureAnalyzer subagent	pass
7	296-git-file-ownership-mapper.md	Git file ownership mapper using node:child_process + p.glob	pass
8	297-workflow-input-validator.md	GitHub Actions workflow input validator with async defineTool	pass
9	298-ts-dead-export-finder.md	TypeScript dead export finder with cross-file reference scanning	pass
10	299-package-json-scripts-documenter.md	package.json scripts documenter with p.write output	pass

Typecheck failures

None — all 10 tasks passed typecheck. Two tasks (296, 298) required minor fixes to remove unused Node.js imports (readFile, readdir, join) before passing.

Tasks run

• (reused) Commit churn classifier: git log --name-only, churnCount/riskLevel per file
• (reused) NPM package size estimator: npm pack --dry-run, sizeRating enum
• (reused) TypeScript branch coverage analyzer: branchAnalyzer subagent delegation
• (reused) Env variable type inferrer: .env.example regex type inference
• (reused) Makefile target extractor: phony vs real target parsing
• (reused) Test fixture generator: signatureAnalyzer subagent, p.readInput
• (new) Git file ownership mapper: p.glob + node:child_process execSync per file
• (new) GitHub Actions workflow input validator: p.glob + async YAML regex parsing
• (new) TypeScript dead export finder: p.glob + async cross-file export reference scan
• (new) package.json scripts documenter: p.read + defineTool classification + p.write

Generated by Daily Rig Task Generator · sonnet46 99.7 AIC · ⌖ 10.3 AIC · ⊞ 6.7K · ◷