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 delimit-ai/delimit-mcp-server --skill api-checkgit clone --depth 1 https://github.com/delimit-ai/delimit-mcp-serverWrote 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/delimit-ai/delimit-mcp-server/api-check)<a href="https://agentmods.dev/skills/delimit-ai/delimit-mcp-server/api-check"><img src="https://agentmods.dev/badge/skills/delimit-ai/delimit-mcp-server/api-check/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/delimit-ai/delimit-mcp-server/api-check"><img src="https://agentmods.dev/badge/skills/delimit-ai/delimit-mcp-server/api-check.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00020 | $0.00200 |
| Opus 5.5 | $0.00008 | $0.00080 |
| Sonnet 5.5 | $0.00004 | $0.00040 |
| Haiku 4.5 | $0.00002 | $0.00020 |
Grade A, and why
api-check 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 9d 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
Find the changed OpenAPI spec and the PR base branch. Materialize its base version with git show <base>:<spec-path> into a temporary file with the same YAML or JSON extension; clean it up afterward. If the base has no spec, say that a two-version check is unavailable. Compare the base file (old_spec) with the working spec (new_spec) using delimit_lint with dry_run: true, delimit_diff, and delimit_semver. Report the breaking changes from delimit_diff.changes where is_breaking is true, the lint violations or errors, and the semver bump. Include next_version only if you supplied current_version to delimit_semver. Do not call a clean result proof of compatibility when the diff reports advisories.
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.
- 9d ago First seen · 7 lines · 20 tokens per session scan A 383cc66e2637
api-check is a skill published in the GitHub repository delimit-ai/delimit-mcp-server (24 stars, last pushed yesterday), licensed MIT. It adds 20 tokens to every session and 200 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-08.
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