Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add rse/ase --skill ase-meta-changeloggit clone --depth 1 https://github.com/rse/aseWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/rse/ase/ase-meta-changelog)<a href="https://agentmods.dev/skills/rse/ase/ase-meta-changelog"><img src="https://agentmods.dev/badge/skills/rse/ase/ase-meta-changelog/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/rse/ase/ase-meta-changelog"><img src="https://agentmods.dev/badge/skills/rse/ase/ase-meta-changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00015 | $0.01989 |
| Opus 5 | $0.00008 | $0.00994 |
| Sonnet 5 | $0.00003 | $0.00398 |
| Haiku 4.5 | $0.00002 | $0.00199 |
Grade A, and why
ase-meta-changelog scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.
@${CLAUDE_SKILL_DIR}/../../meta/ase-control.md @${CLAUDE_SKILL_DIR}/../../meta/ase-skill.md @${CLAUDE_SKILL_DIR}/../../meta/ase-getopt.md
Format
The ChangeLog file is a Markdown formatted file named CHANGELOG.md,
and contains sections with headers in the style N.M.K (YYYY-MM-DD).
Each ChangeLog entry is always formatted as...
`<change-type/> [<artifact-kind/>]: <summary/>`
...where the is one of the following tags and their usual related changes:
- `FEATURE`: new functionality or configuration
- `IMPROVEMENT`: improved functionality or configuration
- `BUGFIX`: corrected functionality or configuration
- `UPDATE`: updated functionality or configuration
- `CLEANUP`: cleaned up functionality or configuration
- `REFACTOR`: refactored functionality or configuration
The is one or more of the following artifact tags,
classifying which kind of artifact the change primarily touches. If
multiple artifact kinds apply, comma-separate them
(e.g. [arch, code]):
- `spec`: requirement/specification artifacts
- `arch`: architecture/design artifacts
- `code`: source code artifacts
- `docs`: documentation artifacts
- `infr`: infrastructure/build/tooling artifacts
- `othr`: any other artifacts
The is not longer than about 60-80 characters. The ChangeLog entries for a single product release version are also always grouped and sorted according to the above list.
Processing
-
The ChangeLog file
CHANGELOG.mdis located in the current directory or one of the parent directories of the current project. Locate and read this file. Store its relative path in .You MUST NOT output anything, except the result with the following :
-
You MUST NOT output anything, except introduce the current operation with an output based on the following :
To update the entries of the most recent ChangeLog section, consult the Git commits plus the currently already staged changes in the Git index, but ignore the Git stash and still unstaged changes.
For finding the corresponding Git commits, first determine the correct baseline Git tag. Take the
N.M.Kfrom the first (most recent) level-2 header in the ChangeLog file and check whether a corresponding Git tag already exists with the commandgit tag --list N.M.K. If this command does produce output, the first section is already released/tagged, so use theN.M.Kfrom the first level-2 header as the baseline tag and insert a new, still-unreleased level-2 section (next patch version, current date) above it, which then becomes the first (most recent) section all subsequent steps operate on - the already released section MUST NOT be modified. If this command produces no output, the first section is still in-progress/untagged, so use theN.M.Kfrom the second level-2 header as the baseline tag instead. If no second level-2 header exists (very first, still untagged release), skip the baseline tag and check all Git commits with the commandgit log HEAD --numstat --pretty=format:'%h: %s'instead. Then check all Git commits betweenHEADand this baseline tag with the commandgit log N.M.K..HEAD --numstat --pretty=format:'%h: %s'.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 210 lines · 15 tokens per session scan A dcfef6b847b6
ase-meta-changelog is a skill published in the GitHub repository rse/ase (52 stars, last pushed today), licensed Apache-2.0. It adds 15 tokens to every session and 1,989 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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