Conciseness

The body is ~35 lines of pure imperative instruction with no padding and no explanation of concepts Claude already knows (worktrees, task graphs, PRs are used, not taught). Lines like '与 subagents 的通信应当简洁。主要通过 context pointers 通信…不要重复 pointers 已经提供的信息' are operational rules, not filler — every token earns its place.

Actionability

Guidance is concrete and executable: exact Skill invocations ('调用 Skill 工具并指定 tdd', 'code-review'), explicit preconditions ('开始前确认其 worktree 基于 integration branch，若不是则 reset 到它上面', '在报告完成前，把 integration branch 的 tip 合并进自己的 branch'), and conditional PR rules in step 3. Minor gaps keep it from a 5: merge-conflict handling, what the merger subagent does on failure, and the exact location for research notes (step 2's 'repo 外…的目录') are unspecified. It is well above the pseudocode-level anchor of 3.

Workflow Clarity

Nine explicitly numbered steps form a coherent sequence with real checkpoints: implementers verify/reset their worktree base and merge the integration tip before reporting done, the frontier is re-evaluated after every merge to launch more subagents, and a mandatory code-review pass with fixes runs before the PR is marked ready. Validation is present, so the batch-operation cap at 3 does not apply. Not a 5 because error-recovery loops for likely failures (merge conflicts, failing or blocked tickets, missing issue tracker mid-run) are not addressed.

Progressive Disclosure

This is a single-file skill under 50 lines with no bundle files at all (references/, scripts/, and assets/ directories do not exist), organized into a short intro plus a numbered 步骤 section. Per the rubric's simple-skill exception, well-organized sections with no need for external references score 5.

Specificity

「在代码中实现 /to-spec 和 /to-tickets 的产出」names the domain (the artifacts of /to-spec and /to-tickets) and exactly one concrete action — implementing them in code — matching the '1-2 concrete actions, not comprehensive' anchor. It is not a 2 because the slash-command references make the action specific rather than generic, and not a 4 because branching, subagent orchestration, and ticket-resolution mechanics are entirely unmentioned.

Completeness

The 'what' is stated clearly (implement the outputs of /to-spec and /to-tickets in code), but there is no 'Use when...' clause or any equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines. It is not a 4 because the 'when' is entirely absent rather than merely under-specified.

Trigger Term Quality

The only keywords are the slash-command names '/to-spec' and '/to-tickets' plus '实现' (implement). These are relevant to users of this skill family, but natural phrases and common variations a user would actually say (spec, tickets, implementation, integration branch, parallel subagents) are missing — the 'some relevant keywords but missing common variations or synonyms' anchor.

Distinctiveness Conflict Risk

Being tied to the specific /to-spec and /to-tickets pipeline gives it a clear niche that is distinguishable from generic coding skills — mostly distinct with only minor overlap risk against sibling implementation/setup skills. It is not a 5 because the anchor's clear trigger phrases ('Use when...') are absent, leaving slight ambiguity against adjacent skills in the same family.