Content
85%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A well-structured skill: executable code for every client-side phase, explicit sequencing with validation checkpoints and error-recovery loops, and a genuine one-level-deep reference split. The main improvement opportunities are consolidating repeated generic pointers to the reference file and defining the few helper symbols used in code examples.
Suggestions
Consolidate the repeated 'See references/device-integrity-patterns.md for full...' pointers (the Common Patterns section ends with two back-to-back generic references, lines 370-373) into a single well-placed list of what lives in the reference file.
Define or annotate the undefined symbols in code examples (serverURL, currentAccountID, DeviceIntegrityError) — even a one-line note that they come from the Full Integration Manager in the reference file — so the Swift blocks are copy-paste ready.
Tighten the 'What the Two Bits Are For' section by moving the bit-semantics examples into the reference file, keeping only the persistence and reset facts inline.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is efficient and sticks to non-obvious Apple-specific facts (two bits persist across reinstall, key-count risk metrics, extension-type support), but the generic pointer 'See references/device-integrity-patterns.md for full...' is repeated several times in quick succession (lines 338, 361, 370-373) and could be consolidated. Minor over-explanation keeps it below the lean anchor of 5. | 4 / 5 |
Actionability | Complete, executable Swift code covers token generation, key generation with Keychain persistence, attestation, and attested requests — real API calls, not pseudocode. However, serverURL, currentAccountID, and DeviceIntegrityError are used but never defined in the main file, leaving minor gaps to copy-paste readiness. | 4 / 5 |
Workflow Clarity | The three-phase flow (key generation, attestation, assertion) is explicitly sequenced up front, with validation gates ('Only treat the keyId as usable after your server verifies attestation'), error-driven feedback loops (retry .serverUnavailable with the same key/hash, discard and regenerate on other failures), and a 10-item review checklist. This matches the anchor for clear sequencing with explicit validation and error-recovery loops. | 5 / 5 |
Progressive Disclosure | The SKILL.md is a clear client-side overview with well-signaled, one-level-deep references (references/device-integrity-patterns.md exists and contains every anchored section cited in the body). Server verification detail is appropriately split out, and a Contents list aids navigation. | 5 / 5 |
Total | 18 / 20 Passed |