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Changelog Writer — measured AI agent skill | DecimalAI

tolztoy/changelog-writer

SkillScore45Maintained

Generates a clean, grouped CHANGELOG entry from a list of git commit messages. Use when the user asks to draft release notes or a changelog from recent commits.

by tolztoy

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

Automatic

Doc Ops pack

decimalai skills pull tolztoy-changelog-writer

Get this skill — curl · raw file

curl -fsSL https://app.decimal.ai/s/tolztoy-changelog-writer/SKILL.md

Raw file: /s/tolztoy-changelog-writer/SKILL.md ↗ · machine-readable summary at /s/tolztoy-changelog-writer.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

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

Yes — +9% lift+25% tokens0% turns45% of whole cases pass with skill (10/22)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-03	✗→✓	▲ Improved	44%	0%
case-05	✗→✓	▲ Improved	5%	0%
case-17	✗→✓	▲ Improved	9%	0%
case-12	✓→✗	▼ Worse	11%	0%
case-15	✓→✓	＝ Same ✓	-14%	0%

Showing 5 of 22 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/1/2026

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

tolztoy / skillci

fixtures/clean-skill/SKILL.md

View on GitHub ↗

License MITImported 8/1/2026Version v1

Skill contents

SKILL.md

Changelog Writer

Turn raw commit messages into a readable changelog section.

Procedure

Read the commit messages provided by the user (or run git log --oneline if asked).
Group commits into these sections, skipping any that are empty:

Added — new features (commits starting with feat)
Fixed — bug fixes (commits starting with fix)
Changed — other user-facing changes
Internal — chores, refactors, tests (commits starting with chore, refactor, test)

Rewrite each entry in the past tense, imperative voice, without the commit prefix.
Output a Markdown section headed with the version and today's date.

Example

Input commits:

feat: add dark mode toggle
fix: correct timezone in date picker
chore: bump deps

Output:

markdown
## 1.4.0 — 2026-06-10

### Added
- Dark mode toggle

### Fixed
- Correct timezone in the date picker

### Internal
- Bumped dependencies

Keep entries short. Never invent changes that aren't in the commits.

Want to see if tolztoy/changelog-writer 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.