Conciseness

The prose is dense and rule-per-line with almost no explanation of concepts Claude already knows, but the ~40-line graphviz digraph restates the exact process already narrated in Setup/Task Loop/Final Review at real token cost, and a few justifications repeat ('they chose inline to spend less', ledger-over-todos appears in multiple phrasings) — the anchor 'mostly efficient but includes some unnecessary content that could be tightened'. Not 4: the duplicated process graph is a substantial trimming opportunity, not a minor one.

Actionability

Fully executable throughout: copy-paste-ready command invocations ('scripts/task-start PLAN_FILE N', 'scripts/task-done PLAN_FILE N BASE -- <test command>', '../subagent-driven-development/scripts/sdd-workspace PLAN_FILE', 'review-package PLAN_FILE MERGE_BASE HEAD'), verbatim output formats for ledger and ruling lines, a completion-contract checklist, and a worked example workflow covering the common case including a mid-plan ruling. No gaps found.

Workflow Clarity

The sequence is explicit (Setup → task loop → final review → fix pass → finish) with validation checkpoints at every level: each step's Expected: line is compared against real output with three defined outcomes, the completion contract requires evidence in-session, task-done records only on a passing test run, and error-recovery feedback loops (systematic-debugging for wrong code, rule-and-ledger for wrong plan, re-grade then one fix pass) are built in. This matches the anchor for clear sequence with explicit validation and feedback loops.

Progressive Disclosure

Scored against the actual bundle: both scripts (task-start, task-done) exist and are referenced in the body with correct usage, and sibling-skill references (sdd-workspace, review-package, code-reviewer.md, using-superpowers references) are one level deep and clearly signaled with paths. Structure is good with clean sections (When to Use, Setup, Task Loop, Final Review, Finish, Rationalizations, Example). Not 5: nearly all content, including the redundant process graph, lives inline in the ~370-line body with no overview-to-detail split, so navigation depends on section headers alone.

Specificity

The description names the domain ('executing an implementation plan in the current session') with essentially one concrete action — inline execution — matching the anchor 'names the domain but actions are minimal' (3), but the second-person voice ('as the implementer yourself — your human partner') triggers the rubric's −1 specificity penalty, landing it at 2. It lists no mechanics (task loop, TDD gates, ledger, final review) that would justify a higher anchor.

Completeness

Both parts are present: what — 'executing an implementation plan … as the implementer yourself' — and an explicit, specific when — 'your human partner chose inline execution, or no subagent tool is available'. Not 5: the 'what' is thin, bundled into the when-clause and conveying nothing about what executing entails (per-task TDD, ledger, whole-branch review), whereas the 5 anchor expects a substantive what alongside concrete triggers.

Trigger Term Quality

'executing an implementation plan', 'inline execution', and 'no subagent tool' are relevant terms a user in this workflow might say, but common variations like 'run the plan', 'implement the plan yourself', or 'do it yourself' are absent — the anchor for 'some relevant keywords but missing common variations'. Not 4: the natural-phrase coverage is narrow and jargon-leaning ('implementer', 'inline execution').

Distinctiveness Conflict Risk

The em-dash clause ('as the implementer yourself — chose inline execution, or no subagent tool') carves a clear niche directly against the sibling subagent-driven-development skill, so it is mostly distinct with only minor overlap risk with that closely related skill — anchor 4. Not 5: the opening phrase 'executing an implementation plan' alone would still surface both executors before the qualifier disambiguates.