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changelog — write a changelog from a commit/PR range · omnigent-ai | DecimalAI

documentationby omnigent-ai

changelog — write a changelog from a commit/PR range

omnigent-ai/changelog

Source omnigent-ai/omnigent ↗License Apache-2.0

Turn a range of commits or merged PRs into a changelog entry grouped by change type.

SkillScore50Maintained

Automatic

Doc Ops pack

Last verified 8/12/2026

What it changes

Passed 8 of 16 test cases with the skill, and 5 of 16 without it.

Without skill32%

With skill50%

Checks it passed that the model alone missed

Omits the test-only commit from the release log.
Executes git log with --no-merges and --pretty=format:'%h %s'.
Phrases the entry in imperative mood standard for changelog entries.

and 2 more in the full report

5 fixed6 passed either way10 still failing1 broke

Pass-rate lift: +18 pp
Tokens: -2%
Agent turns: 0%
Response time: -29%

Model gemini-3.6-flashMeasured 8/12/2026v111 of 22 cases passed with skill · 16 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/omnigent-ai-changelog/SKILL.md https://app.decimal.ai/s/omnigent-ai-changelog/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add omnigent-ai-changelog, 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/omnigent-ai-changelog/ and pins it in .decimal/skills.lock

decimalai skills add omnigent-ai-changelog

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

curl -fsSL --create-dirs -o .claude/skills/omnigent-ai-changelog/SKILL.md https://app.decimal.ai/s/omnigent-ai-changelog/SKILL.md

Raw file: /s/omnigent-ai-changelog/SKILL.md ↗ · machine-readable summary at /s/omnigent-ai-changelog.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 5

Prompt

What shell command gathers non-merge commit hashes and subjects for tag range v1.0.0..v1.1.0?

What was checked, without and with the skill
Checked	Without skill	With skill
Executes git log with --no-merges and --pretty=format:'%h %s'.	Missed	Passed

case-16 · gemini-3.6-flash · 8/12/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md49 linessingle file

changelog — write a changelog from a commit/PR range

Turn a range of history into a clear changelog entry that a user can read to decide whether and how to upgrade.

Gather the range

Establish the range first. Honor an explicit one ("since v1.2.0", "the last 10 commits", "PRs merged this week"); otherwise default to commits since the most recent tag (git describe --tags --abbrev=0 then git log <tag>..HEAD).

Collect the raw material yourself with sys_os_shell:

git log <range> --no-merges --pretty=format:'%h %s' for the commit subjects.
git log <range> --merges or gh pr list --search "merged:>=<date>" for PRs.
git diff <range> --stat to see the surface area, and gh pr view <n> for a PR's intent when a subject line is terse.

When a subject is unclear about user impact, dispatch the researcher (purpose: explore) to read the diff and report what actually changed for users — do not guess from the subject alone.

Group by change type

Use the Keep a Changelog categories, dropping any that are empty:

## <version or range> — <YYYY-MM-DD>

### Added
### Changed
### Deprecated
### Removed
### Fixed
### Security

Write each entry

One line per user-visible change, in the imperative or past tense, describing the effect on the user — not the internal mechanics.
Lead with the change, link the PR or commit in parentheses at the end.
Omit pure-internal churn (refactors, test-only changes, CI) unless it changes

Track record

Benchmark

8 / 16

test cases passed, vs 5 / 16 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

omnigent-ai / omnigent

examples/scribe/skills/changelog/SKILL.md

View on GitHub ↗

License Apache-2.0Imported 8/3/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

changelog — write a changelog from a commit/PR range

Gather the range

Group by change type

Write each entry

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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