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Remove Dead Code · qdhenry | DecimalAI

codingby qdhenry

Remove Dead Code

qdhenry/remove-dead-code

Source qdhenry/claude-command-suite ↗License Not recorded

Safely identifies and removes dead code in TypeScript/JavaScript projects using multi-agent analysis with automatic backup branches.

NewMaintained

Automatic

Coding pack

Last verified 8/13/2026

What it changes

Passed 13 of 21 test cases with the skill, and 13 of 21 without it.

Without skill64%

With skill64%

Checks it passed that the model alone missed

Recommends starting with a scan first
Asks the user if they want to scan first
Preserves src/auth.ts because it is a test subject

3 fixed11 passed either way5 still failing3 broke

Pass-rate lift: 0 pp
Tokens: +15%
Agent turns: 0%
Response time: -42%

Model gemini-3.6-flashMeasured 8/13/2026v114 of 22 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/qdhenry-remove-dead-code/SKILL.md https://app.decimal.ai/s/qdhenry-remove-dead-code/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add qdhenry-remove-dead-code, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/qdhenry-remove-dead-code/ and pins it in .decimal/skills.lock

decimalai skills add qdhenry-remove-dead-code

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/qdhenry-remove-dead-code/SKILL.md https://app.decimal.ai/s/qdhenry-remove-dead-code/SKILL.md

Raw file: /s/qdhenry-remove-dead-code/SKILL.md ↗ · machine-readable summary at /s/qdhenry-remove-dead-code.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 3

Prompt

When a user asks an ambiguous question like 'Can you clean up dead code in my project?', what exact clarifying question should be asked?

What was checked, without and with the skill
Checked	Without skill	With skill
Asks the user if they want to scan first	Missed	Passed

case-18 · gemini-3.6-flash · 8/13/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md80 lines3 files

<essential_principles>

Safety-first dead code removal. Every removal is protected by an automatic backup branch. Multi-agent analysis reduces false positives. No code is deleted without cross-validation.

1. Backup Before Everything

Before any modification, create a timestamped backup branch from the current HEAD. This is non-negotiable. The branch name format is backup/dead-code-removal/{timestamp}.

2. Parallel Scout + Validator Pattern

Multiple scout agents analyze different aspects of dead code in parallel. A validator agent then cross-checks all findings against the full codebase before anything is flagged for removal. Only code confirmed dead by both scouts AND validator gets removed.

3. Conservative by Default

When in doubt, keep the code. False negatives (missing some dead code) are acceptable. False positives (removing live code) are not. Dynamic imports, reflection, test utilities, and public API surface are always treated as potentially live.

4. Never Remove Without Reporting First

The scan workflow produces a report. The user reviews the report. Only then does the remove workflow execute against confirmed items.

</essential_principles>

Scan - Analyze codebase for dead code (read-only, produces report)
Remove - Remove confirmed dead code (requires prior scan report)
Validate - Verify removal didn't break anything (post-removal checks)

Wait for response before proceeding.

Track record

Benchmark

13 / 21

test cases passed, vs 13 / 21 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

qdhenry / claude-command-suite

.claude/skills/remove-dead-code/SKILL.md

View on GitHub ↗

Imported 8/3/2026Version v1Bundled 2 files

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aiskillstore/dead-code-removalDetects and safely removes unused code (imports, functions, classes) across multiple languages. Use after refactoring, when removing features, or before production deployment. Includes safety checks and validation.Close match+14 pp pass-rate lift

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