Conciseness

The same rules are restated across four sections: the reuse-vs-new question appears in Mandatory First Step, Credential Decision Messages, and Workflow steps 2-3; "stop until the user answers" appears three times; "prefer ignored or untracked env files" appears in Safety Rules and Workflow step 1; the no-plaintext-printing rule appears in three forms. There is no concept-explanation padding, but the volume of duplicated rule blocks makes this 'noticeably verbose with several padded sections' (anchor 2) rather than 'some content that could be tightened' (anchor 3).

Actionability

Fully executable guidance: exact tool names and call shapes (`open_codex_api_key_setup` called with `{}`, `confirm_openai_api_key_local_destination`, `create_encrypted_openai_api_key`, connector id `connector_2de447f3f15448ebab48783d7e4f5d81`), copy-paste `node ... prepare/decrypt` commands with all flags, and a verbatim fallback question ("Save the new key to <path>? Reply yes to continue..."). Minor placeholders like "<plugin root>" are environment-specific, not gaps; anchor 5 fits.

Workflow Clarity

Steps 1-8 are clearly sequenced with explicit checkpoints and error branches: hard stop before the credential decision, tracked-file check with confirmation stop, tool preflight with retry after user reconnects, decline/cancel handling, refusal of symlink/out-of-workspace targets, and a final verification step. This is a single-target (not batch/destructive) write with a validate loop present, matching anchor 5; not 4 because no checkpoint is missing.

Progressive Disclosure

Structure is good: clear section headers, and the only bundle file, `references/evals.md` (verified to exist), is referenced one level deep in a dedicated References section with a one-line description. Not 5 because the ~135-line body keeps dense procedural detail inline (picker-turn mechanics, credential-decision message branches) that could partly live in a reference, leaving minor organization gaps per anchor 4.

Specificity

Concrete actions are named — "inspect safely, ask reuse-vs-new before API work, and never expose plaintext" plus "OPENAI_API_KEY or sk-proj setup" — but coverage of what the skill does (secure key creation via the Platform connector, writing to a confirmed local destination) is only implied by "credential gate". Anchor 4 (several specific actions, minor gaps) fits better than 3 (only 1-2 actions) and better than 5 (comprehensive capability coverage).

Completeness

Both halves are explicit: what — "Treat this as the credential gate: inspect safely, ask reuse-vs-new before API work, and never expose plaintext"; when — an explicit "Use when Codex is asked to build, run, test, debug, or configure..." clause with concrete trigger phrases. Matches the anchor-5 example structure exactly; 4 would require the 'when' to be less explicit than it is.

Trigger Term Quality

Natural user phrasings are comprehensively covered: "build, run, test, debug, or configure an OpenAI-backed or provider-unspecified AI app, UI, script, CLI, generator, or tool", "requests phrased only as 'using AI'", "generators driven by forms/user input", plus the exact tokens a user would type ("OPENAI_API_KEY", "sk-proj"). It includes synonyms and artifact-type variations the way the anchor-5 example includes "PDF files, PDFs, .pdf"; not 4 because no common natural variation of the request is conspicuously missing.

Distinctiveness Conflict Risk

The OpenAI-key/credential-gate niche is clear and "sk-proj"/"OPENAI_API_KEY" are distinctive triggers, but "provider-unspecified AI app, UI, script, CLI, generator, or tool" is deliberately broad and will overlap invocation territory with general app/frontend-implementation skills (the body confirms coordination with `build-web-apps:frontend-app-builder`). Mostly distinct with minor overlap risk against closely related skills — anchor 4, not 5.