Conciseness

The body is rule-dense with zero concept-explanation padding ('同 fact_key 覆盖更新', the tool quick-reference table) and assumes competence, but has minor repetition — the links requirement appears in the 原语 table, the dedicated links section, and the 节奏 rules, and '摘要不足必须 get_project_fact' is stated twice — placing it at the 'efficient with minor trims' anchor rather than 5.

Actionability

Concrete guidance throughout: exact key formats ('target/primary_domain', 'finding/sqli-login'), enumerated edge types with minimums ('finding 至少 1 条 {from: target/*, type: discovered_on}'), and a forbidden-summary example ('禁止只写「存在 SQLi」'). It stops short of 5 because there is no worked example of a complete upsert payload or links JSON.

Workflow Clarity

The 强制节奏 is a clear numbered sequence with immediate-write checkpoints, per-mode guidance, and 每步必检 checklists with explicit error-recovery paths (拒绝→换路 fallback order, 卡住时 recovery, 违反判定 criteria). The 3-cap for destructive/batch operations without validation does not apply (writes are idempotent upserts with a pre-write dedup check), but a post-write verification loop is absent, so it sits at 4 rather than 5.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are absent), and the ~100-line body is well-sectioned with clear headers and one-level, clearly signaled cross-skill references ('详见 pentest-verification'). It is not 5 because the detailed 写入规范/links schema is fully inline where a separate reference file would keep SKILL.md a leaner overview.

Specificity

The description names several concrete actions and tools — 'upsert_project_fact/record_vulnerability', '关系边 links、confidence、与多代理协调落库' — in third person, but omits parts of the skill's scope (search/deprecate, evidence handling), so it falls short of the comprehensive-coverage anchor at 5 and above the 1-2-actions anchor at 3.

Completeness

It clearly answers 'what' with concrete mechanisms (SQLite fact graph, upsert_project_fact/record_vulnerability, links, confidence, multi-agent coordination) and explicitly answers 'when' with an explicit 'Use when managing project facts, blackboard index, writing evidence, or avoiding context-loss after compression' trigger clause, matching the 5 anchor; it is well above the 4 anchor where 'when' is only adequate.

Trigger Term Quality

'project facts, blackboard index, writing evidence, context-loss after compression' are relevant domain keywords, but they lean jargon-ward and miss the natural phrasings and synonyms a user would actually say (e.g. saving pentest findings, recording vulnerabilities, fact graph, SQLite), matching the 'some relevant keywords but missing common variations' anchor.

Distinctiveness Conflict Risk

Terms like '项目黑板', 'blackboard index', and 'context-loss after compression' carve a distinct product-specific niche with dedicated triggers, leaving only minor overlap risk with generic note-taking/context-management skills — the 'mostly distinct' anchor rather than the fully clean niche at 5.