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 agentmods add skills/shenli/devtool-ax-kit/ax-comparisonnpx skills add shenli/devtool-ax-kit --skill ax-comparisongit clone --depth 1 https://github.com/shenli/devtool-ax-kitWrote 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/shenli/devtool-ax-kit/ax-comparison)<a href="https://agentmods.dev/skills/shenli/devtool-ax-kit/ax-comparison"><img src="https://agentmods.dev/badge/skills/shenli/devtool-ax-kit/ax-comparison.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00016 | $0.00163 |
| Opus 5 | $0.00008 | $0.00081 |
| Sonnet 5 | $0.00003 | $0.00033 |
| Haiku 4.5 | $0.00002 | $0.00016 |
Grade A, and why
ax-comparison 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 3d 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.
What it actually says
Compare one controlled task under clearly named conditions, such as public docs/CLI versus an official Skill, MCP server, or plugin. Hold the fixture, verifier, resource limits, and prompt intent constant. Randomize or repeat runs when practical, and record timing, retries, duplicate effects, recovery, and transcript safety.
Treat differences as agent-usability evidence unless the protocol isolates a vendor defect. Report non-reproductions and alternative explanations. Do not generalize from a single successful run.
Attribute each failure to one layer where possible: task/model, harness/session, tool interface, or external infrastructure. Track human attention and verifier disagreement alongside completion and wall-clock time.
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.
- 3d ago First seen · 19 lines · 16 tokens per session scan A 6beac822f53b
ax-comparison is a skill published in the GitHub repository shenli/devtool-ax-kit (2 stars, last pushed 4d ago), licensed Apache-2.0. It adds 16 tokens to every session and 163 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 2026-08-31.
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