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Kill Dead Code — measured AI agent skill | DecimalAI

archive228/kill-dead-code

NewSkillScoreMaintained

Find and remove unreachable/unused code safely. Use during cleanup or before a refactor.

codingby archive228

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

Coding pack

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

pip install decimalai

2 · Get the skill — writes .claude/skills/archive228-kill-dead-code/SKILL.md

decimalai skills pull archive228-kill-dead-code --out .claude/skills/

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

curl -fsSL --create-dirs -o .claude/skills/archive228-kill-dead-code/SKILL.md https://app.decimal.ai/s/archive228-kill-dead-code/SKILL.md

Raw file: /s/archive228-kill-dead-code/SKILL.md ↗ · machine-readable summary at /s/archive228-kill-dead-code.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

23 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 6h ago

—-38% tokens0% turns70% of whole cases pass with skill (16/23)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-08	✗→✓	▲ Improved	-48%	0%
case-13	✓→✗	▼ Worse	-37%	0%
case-18	✓→✗	▼ Worse	9%	0%
case-20	✓→✗	▼ Worse	-75%	0%
case-23	✓→✗	▼ Worse	2%	0%

Showing 5 of 23 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

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

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

archive228 / loopkit

skills/kill-dead-code/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

Skill contents

SKILL.md

Kill Dead Code

Prove it's dead — no references (grep the symbol across the repo, including dynamic/string usage and tests). Unused export ≠ dead if it's a public API.
Check it's not feature-flagged off (dead today, alive when the flag flips).
Delete it AND its now-orphaned tests, imports, and config.
Run the full suite + a build. Dead code removal should change behavior in exactly zero ways.

Bias to delete: every line someone has to read is a cost. But never delete what you can't prove is unreachable — say "I think X is unused, confirm?" instead of guessing.

Want to see if archive228/kill-dead-code would activate on your phrasing? Try it before you install — no LLM call, no signup.

Other measured skills in the registry, with their headline benchmark lift.