Conciseness

Individual lines are lean and no space is spent explaining concepts Claude already knows, but the document restates the same failure modes across multiple sections — 'just this once' and 'trusting agent reports' each appear 3-4 times across Red Flags, Rationalization Prevention, Common Failures, and Key Patterns. This fits anchor 3 ('mostly efficient but could be tightened'), not anchor 2 since there is no unnecessary concept explanation or padding prose.

Actionability

The Gate Function is a concrete 5-step procedure with decision branches, the Key Patterns give explicit ✅/❌ examples, and the red-green regression sequence ('Write → Run (pass) → Revert fix → Run (MUST FAIL) → Restore → Run (pass)') is fully specified. It falls at anchor 4 rather than 5 only because the examples use placeholders ('[Run test command]') rather than literal executable commands — minor gaps, though context-dependence is inherent to a meta-skill.

Workflow Clarity

The Gate Function lays out a clear sequence (IDENTIFY → RUN → READ → VERIFY → claim only then) with an explicit verification checkpoint and a failure feedback branch ('If NO: State actual status with evidence'), and the Common Failures table maps each claim type to its required evidence. This matches anchor 5 ('clear sequence with explicit validation steps; feedback loops for error recovery'), and verification is the skill's entire subject.

Progressive Disclosure

The skill is a self-contained behavioral gate with no bundle files and nothing that belongs in external references — the gate must load in full to work — and the body is organized into clear, navigable sections (Iron Law, Gate Function, Common Failures, Red Flags, Key Patterns, When To Apply). Content is appropriately placed in a single file, matching the top anchor's intent of appropriate structure and easy navigation.

Specificity

The description names the domain ('Internal verification gate for delivery-flow') and a concrete scope ('claims work is complete, fixed, or passing'), but describes only 1-2 concrete elements rather than a list of specific actions. It fits anchor 3 ('names domain and 1-2 concrete actions'); it is not anchor 4 because it never states what the gate actually does (e.g., run commands, read output, check exit codes), and not anchor 2 because the claim types give it more specificity than a bare domain statement.

Completeness

Both parts are present: what ('Internal verification gate for delivery-flow') and an explicit when ('Use before delivery-flow claims work is complete, fixed, or passing') plus an activation boundary ('do not activate directly for a standalone user request'). It stops short of anchor 5 because the 'what' is somewhat abstract — it says what the skill is, not what it does — which is the anchor-4 pattern ('when' explicit, 'what' could be more concrete).

Trigger Term Quality

'complete, fixed, or passing' are natural phrases, but common variations and synonyms are missing ('done', 'works', 'tests green', 'all set'). This matches anchor 3 ('some relevant keywords but missing common variations or synonyms'), short of anchor 4's 'good keyword coverage'.

Distinctiveness Conflict Risk

It is scoped to a specific parent flow ('delivery-flow') and explicitly excludes standalone activation ('do not activate directly for a standalone user request'), giving a clear niche with minimal conflict risk — anchor 5. It is not anchor 4 because the boundary guidance is already explicit rather than leaving minor overlap risk.