Conciseness

Three substantial sections re-teach TDD basics Claude already knows: a ~40-line ASCII box diagram of RED/GREEN/REFACTOR/VERIFY, a 'TDD Principles' table ('Tests First', 'Minimal Code', 'Small Steps', 'Fast Feedback', 'Refactor Often'), and a 'Test Types' table explaining unit/integration/E2E tests. That is several padded sections of unnecessary explanation, matching the 2 anchor; the Quick Start and phase snippets themselves are lean, so it is not a 1.

Actionability

The Quick Start and 'Individual Phases' snippets are real Python against the bundled module's actual API ('from scripts.tdd_workflow import TDDWorkflow', 'implement_feature', 'write_test', 'implement_code', 'refactor' — all exist in scripts/tdd_workflow.py), not pseudocode. Minor gaps keep it from 5: 'project_dir' and 'criteria' are undefined, top-level 'await' is not copy-paste runnable, and there is no CLI usage for users who want to run the scripts directly.

Workflow Clarity

The RED → GREEN → REFACTOR → VERIFY sequence is clearly presented, but validation is implicit rather than actionable: checkpoints appear only as captions inside the box diagram ('Test must fail', 'Keep tests passing') with no explicit feedback-loop steps (e.g., what to do when the RED test unexpectedly passes or GREEN fails). This matches the 3 anchor 'checkpoints missing or implicit' and falls short of the 4 anchor's 'most checkpoints present'.

Progressive Disclosure

Section structure is good with a clear Quick Start and one-level-deep references, but the two referenced files ('references/TDD-BEST-PRACTICES.md', 'references/TEST-PATTERNS.md') do not exist in the bundle — they are dangling pointers that dead-end navigation. The script listings are accurate (all four files exist), so this sits at the 3 anchor 'references present but' not reliably navigable rather than the 2 anchor's inlined-content problem.

Specificity

The description lists several concrete actions — 'implementing features with TDD, writing tests first, following red-green-refactor, or ensuring test coverage' — beyond just naming the domain. It is not a 5 because the actions describe methodology steps rather than concrete deliverables, and the 3 anchor ('1-2 concrete actions') undersells the coverage.

Completeness

Both parts are present: a 'what' ('Test-Driven Development workflow for autonomous coding') and an explicit 'Use when...' clause with concrete triggers. It is not a 5 because the 'what' clause is a one-line domain statement rather than the concrete capability enumeration seen in the 5 anchor; it is clearly above the 3 anchor since the 'when' is explicit and multi-triggered.

Trigger Term Quality

Good natural keyword coverage: 'Test-Driven Development', 'TDD', 'writing tests first', 'red-green-refactor', 'test coverage' — phrases a user needing this skill would naturally say. Missing some common variations (e.g., 'test-first development', 'unit tests'), so it falls short of the comprehensive 5 anchor.

Distinctiveness Conflict Risk

The TDD framing ('red-green-refactor', 'writing tests first') carves out a fairly distinct niche with specific triggers. Minor overlap risk remains with generic testing/coverage skills on terms like 'test coverage', keeping it just below the 5 anchor's 'clear niche with minimal conflict risk'.