Conciseness

The ~245-line body opens with a duplicate YAML frontmatter block (including malformed shell like '>$dev$null') and restates the same mock/contract/coordination material across 'Swarm Coordination Patterns', 'Swarm Integration', and 'Best Practices' — several noticeably padded sections matching anchor 2. It is not 3 because the redundancy is extensive rather than incidental, and not 1 because it does not spend space explaining concepts Claude already knows (it never defines what mocks or TDD are).

Actionability

The core Jest examples (mockRepository definitions, toHaveBeenCalledWith assertions) are concrete, but a large share depends on undefined infrastructure — 'swarmCoordinator.notifyTestStart', 'createSwarmMock', 'extendSwarmMock', 'SwarmContractMonitor', 'toSatisfyContract', 'toHaveBeenCalledBefore' — none of which exist as shown. This matches anchor 3 (concrete guidance but incomplete / non-executable in key places): better than 2 because real executable patterns are present, worse than 4 because the missing definitions are more than minor gaps.

Workflow Clarity

The body is organized as topic catalogs (methodology, patterns, strategies, integration) with no sequenced process — no red/green/refactor loop, no ordered outside-in steps, no validation checkpoints for when a test or contract fails. This matches anchor 2 (rough implied sequence, many gaps, poorly defined steps): the 'Outside-In Development Flow' section title gestures at a sequence without defining one, so it cannot reach 3, and it avoids 1 because the sections do imply a coherent overall direction.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are all absent), so everything is inline in one ~250-line file. Section headers are reasonable, but the methodology examples, contract-testing patterns, and swarm coordination material are all content that would belong in separate reference files, matching anchor 3 (some structure, content that should be separate is inline). Not 4 because at this length a SKILL.md overview plus one-level-deep references is clearly warranted; not 2 because the sections are clearly labeled and navigable.

Specificity

The description 'Agent skill for tdd-london-swarm - invoke with $agent-tdd-london-swarm' names the domain only via the slug and contains no action verbs whatsoever, sitting between anchor 1 (no concrete actions) and anchor 2 (names domain, generic actions). It names a domain but describes zero actions, so it cannot reach 3, and it is not 'entirely vague' since the slug identifies a specific niche, keeping it above 1.

Completeness

There is only a vague 'what' implied by the skill name ('Agent skill for tdd-london-swarm') and no 'when' clause at all, exactly matching anchor 2 ('has a vague what and no when'). It cannot score 3 because the 'what' is never explicitly stated in the description text itself, and not 1 because the slug does gesture at the skill's purpose.

Trigger Term Quality

The only terms present are technical slug jargon ('tdd-london-swarm', '$agent-tdd-london-swarm'); none of the natural phrases a user would actually say (mocks, mockist, test-first, London school, behavior verification) appear. This matches anchor 1 — only technical jargon, no natural keywords — and does not warrant 2 because even a single generic natural keyword is absent.

Distinctiveness Conflict Risk

The slug 'tdd-london-swarm' is fairly specific, but the description provides no differentiating capability statements, so it could overlap with any general TDD, mocking, or testing skill — matching anchor 3 (somewhat specific but could still overlap). Not 4 because nothing in the prose distinguishes it from sibling testing skills.