Conciseness

There is no basic-concept padding and the dense edge-case rules (skip_specs handling, symlink checks, the 51,200-byte context limit) earn their tokens, but the body is noticeably verbose: the store-selection paragraph repeats the --store rules multiple times, and the planning boundary is stated in full both in the opening section and again in Guardrails. Several passages could be tightened without losing information, matching anchor 3 ('mostly efficient but could be tightened') rather than anchor 4's minor-trim bar.

Actionability

Every step gives copy-paste-ready commands with exact flags (e.g. `openspec new change "<name>"`, `openspec status --change "<name>" --json`, `openspec instructions <artifact-id> --change "<name>" --json`) and specifies which JSON fields to read and how to act on each (applyRequires, requires edges, root, message/fix). Anchor 5: fully executable guidance covering the common cases.

Workflow Clarity

A clear 7-step sequence with explicit validation checkpoints: a project check before any write, re-running `openspec status --json` after each artifact to recompute the required set, verifying each artifact file exists after writing, and defined error-recovery paths (stop and show the status error's message and fix rather than retrying). This matches anchor 5's explicit validation with feedback loops; nothing is missing for this file-writing workflow.

Progressive Disclosure

No bundle files exist, so everything lives in SKILL.md, but the body is well-sectioned (Planning boundary, Store selection, Project check, Steps, Output, Guidelines, Guardrails) and appropriately defers artifact-specific detail to the CLI's own `instructions` output rather than inlining it — an effective one-level deferral. It is not anchor 5 because the store-selection/project-check boilerplate, likely shared across the OpenSpec workflow family, is fully inlined instead of split into a reference file; it is above anchor 3 because structure and navigation are genuinely good.

Specificity

The description names concrete actions ('Propose a new OpenSpec change with all artifacts generated in one step') and concrete deliverables ('proposal with design, specs, and tasks ready for implementation'). It stops short of anchor 5's comprehensive multi-action coverage, listing essentially one composite workflow action rather than several distinct operations.

Completeness

Explicitly answers both questions: what ('Propose a new OpenSpec change with all artifacts generated in one step... design, specs, and tasks') and when ('Use when the user wants to quickly describe what they want to build... Also use when the user says "openspec propose" or "opsx propose"'). Both are present with concrete trigger phrases, matching anchor 5 rather than anchor 4 where the 'when' would be less explicit.

Trigger Term Quality

Includes natural trigger phrases users would say: 'openspec propose', 'opsx propose', and 'quickly describe what they want to build'. Good keyword coverage with the literal CLI invocations, but misses common synonyms a user might use such as 'plan a change' or 'spec out a feature', keeping it below anchor 5.

Distinctiveness Conflict Risk

'OpenSpec change' plus the command triggers 'openspec propose'/'opsx propose' establish a clear niche with minimal conflict risk. However, 'wants to quickly describe what they want to build and get a complete proposal' could overlap with generic planning or proposal skills, matching anchor 4 ('mostly distinct; minor overlap risk') rather than anchor 5.