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version-sync

Migrate an out-of-tree LLVM project to a new LLVM version (e.g., LLVM 21 → 22). Covers CMake bump, common LLVM 22 API breakages, header moves, pass renames, and opaque pointer migration.

Quality

83%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

82%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The content is a well-structured, highly actionable migration checklist with concrete code and a clear step sequence. It is slightly held back by implicit validation feedback loops and minor redundancy in 'unchanged' table entries.

Suggestions

Make validation feedback loops explicit, e.g. after Step 2 add 'after fixing a category, rebuild and re-collect errors until build-errors.txt is empty'.

Trim or group '(unchanged)' / 'Still works' table rows to reduce noise, or move them into a 'stable APIs (no action needed)' subsection.

Consider moving the cumulative API-rename tables (Step 5) into a references/ file for a leaner SKILL.md overview.

DimensionReasoningScore

Conciseness

The body is mostly lean tables and before/after code that assume Claude's competence, but a few '(unchanged)' and 'Still works' entries (e.g. TypeSize.h, scalar-evolution, DIBuilder::finalize) add mild redundancy that could be trimmed.

4 / 5

Actionability

Provides copy-paste-ready bash/cmake commands (git checkout, cmake, llvm-config, opt --print-passes, llvm-lit) and concrete before/after API tables covering the common migration cases.

5 / 5

Workflow Clarity

Steps 0–11 are clearly sequenced with a checklist summary and verification via build-error collection (Step 2) and tests (Step 9), but the rebuild-after-fix feedback loops are implicit rather than explicit checkpoints.

4 / 5

Progressive Disclosure

Well-organized into clearly labeled sections with no nested references (the 'add-npm-pass' pointer is a one-level external skill link), though the ~210 lines of API tables could optionally be split into a reference file.

4 / 5

Total

17

/

20

Passed

Description

75%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is specific, third-person, and clearly distinct, naming five concrete migration sub-tasks. Its main weakness is the missing explicit 'Use when...' trigger clause, which caps completeness.

Suggestions

Add an explicit trigger clause, e.g. 'Use when upgrading or porting an out-of-tree LLVM project to a newer LLVM version (e.g. 21 to 22).'

Include natural synonyms users might say — 'upgrade', 'port', 'bump LLVM version' — alongside 'migrate'.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'CMake bump', 'common LLVM 22 API breakages', 'header moves', 'pass renames', and 'opaque pointer migration' — giving comprehensive coverage of the migration task.

5 / 5

Completeness

The 'what' is clearly stated, but there is no 'Use when...' clause or equivalent explicit trigger guidance, so per the judging guidelines completeness is capped at 3.

3 / 5

Trigger Term Quality

Natural domain terms like 'Migrate', 'out-of-tree LLVM project', and 'new LLVM version' are present, but common synonyms such as 'upgrade' or 'port' and an explicit trigger phrase are missing.

4 / 5

Distinctiveness Conflict Risk

The niche — migrating out-of-tree LLVM projects to LLVM 22 — is highly specific with distinct triggers and minimal overlap risk with other skills.

5 / 5

Total

17

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

hbarve1/tessl-llvm

Path

tiles/tessl-llvm/skills/version-sync/SKILL.md

Reviewed

Table of Contents

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