Agent skill
review-tool-coverage
Audit query tools for accuracy, gaps, and retirement candidates
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/review-tool-coverage
SKILL.md
Enter planning mode. Audit the query tools in tools/ for fitness. Use parallelism where possible.
Context
Query tools (tools/query_*.ps1) exist to give structured answers without loading full files into context. CLAUDE.md lists only the most-used tools — niche tools are intentionally omitted to save per-session context, but they're still referenced by skills when relevant. "Unused by CLAUDE.md" does NOT mean unused.
Current Inventory
| Tool | Purpose |
|---|---|
query_config.ps1 |
Config registry search — sections, groups, usage |
query_function.ps1 |
Extract function body by name |
query_function_visibility.ps1 |
Function definition, public/private, all callers |
query_global_ownership.ps1 |
Global declaration, writers, readers, manifest |
query_instrumentation.ps1 |
Profiler coverage map |
query_interface.ps1 |
File public surface (functions + globals) |
query_ipc.ps1 |
IPC message senders/handlers |
query_messages.ps1 |
Windows message (WM_) handler/sender mapping |
query_profile.py |
Speedscope profile analysis |
query_state.ps1 |
State machine branch extractor |
query_timers.ps1 |
SetTimer inventory by file |
query_visibility.ps1 |
Public functions with few external callers |
query_callchain.ps1 |
Call graph traversal (forward and -Reverse) |
query_impact.ps1 |
Mutation impact analysis |
query_includes.ps1 |
Cross-file #Include analysis |
query_mutations.ps1 |
Global mutation tracking |
Audit Steps
1. Accuracy — do tools match the codebase?
Run each query_*.ps1 tool with no args (or a known-good sample query) and check:
- Does the output parse the current file format correctly?
- Have any source files been renamed, restructured, or split since the tool was written?
- Are regex patterns still matching the right constructs?
Flag tools that produce silently wrong output (no errors, but stale/incorrect data). A tool that errors loudly is less dangerous than one that lies quietly.
2. Gaps — are there new "load big file to find small answer" patterns?
Look for patterns in the codebase that suggest a missing tool:
- Files over 300 lines where agents typically only need a small slice
- Common grep patterns that could return structured answers instead of raw lines
- Questions that require cross-referencing multiple files (e.g., "who sends message X and who handles it" —
query_messages.ps1already covers this for WM_ messages; is there an equivalent need for other patterns?)
The bar: would a new tool save >50 lines of context per use? If not, grep is fine.
3. Retirement — are any tools dead weight?
A tool nobody invokes is dead code with maintenance cost. Check:
- Is the tool referenced by any skill in
.claude/skills/? - Is the tool listed in CLAUDE.md?
- Does the tool's domain still exist in the codebase? (e.g., if a subsystem was removed, its query tool should go too)
Note: a tool referenced only by skills (not CLAUDE.md) is NOT a retirement candidate — it's a niche tool by design.
4. Cross-references — could existing skills benefit from niche tools?
Check each skill in .claude/skills/ — could any benefit from referencing a query tool they don't currently mention? Skills only load on invocation, so adding a niche tool reference costs zero per-session context.
Plan Format
Section 1 — Accuracy issues (tools producing wrong output):
| Tool | Issue | Fix |
|---|---|---|
query_config.ps1 |
Registry format changed, parser misses fmt field |
Update regex on line 42 |
Section 2 — Gap candidates (potential new tools):
| Pattern | Frequency | Context Saved | Recommendation |
|---|---|---|---|
| "Which files #Include X" | ~2/session | ~80 lines | New tool: query_includes.ps1 |
Section 3 — Retirement candidates (genuinely unused):
| Tool | Last Relevant Use | Recommendation |
|---|---|---|
query_foo.ps1 |
Subsystem removed in v0.7 | Delete |
Section 4 — Skill cross-references (niche tools that skills should mention):
| Skill | Tool to Add | Why |
|---|---|---|
review-dead-code |
query_visibility.ps1 |
Finds public functions with 0 callers |
Ignore any existing plans — create a fresh one.
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