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 OutlineDriven/odin-claude-plugin --skill lockstep-version-guardgit clone --depth 1 https://github.com/OutlineDriven/odin-claude-pluginWrote 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/outlinedriven/odin-claude-plugin/lockstep-version-guard)<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/lockstep-version-guard"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/lockstep-version-guard/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/outlinedriven/odin-claude-plugin/lockstep-version-guard"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/lockstep-version-guard.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 | $0.00059 | $0.00782 |
| Opus 5.5 | $0.00024 | $0.00313 |
| Sonnet 5.5 | $0.00012 | $0.00156 |
| Haiku 4.5 | $0.00006 | $0.00078 |
Grade A, and why
lockstep-version-guard 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 1mo 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 — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Lockstep version guard
Contract
| Field | Bound contract |
|---|---|
| Trigger | A human explicitly invokes the guard at a release gate. |
| Authority | Read-only: inspect local release metadata without changing files, version control, credentials, paid services, published artifacts, deployments, or remote state. |
| Side effect | None; the check writes no project state. |
| Done | Exit 0 when every checked version equals the canonical version; otherwise exit 1 with a per-file listing. |
Inputs
Supply the release root. The identity ledger catalog/plugins.json under it must provide the canonical releaseVersion and enumerate the 28 ODIN package members, each identifying its version-bearing plugins/<id>/plugin.json via its directory field. No input is optional.
Procedure
-
Resolve the supplied release root without changing the working tree. Reject a missing, unreadable, or non-directory root. Done when: the release root is resolved and confirmed as a readable directory.
-
Read the canonical version from the
releaseVersionfield ofcatalog/plugins.json. Reject a missing, non-string, or empty version. Done when: the canonical version is read and confirmed as a non-empty string. -
Read the
entriesarray ofcatalog/plugins.jsonand collect the version-bearing manifest each entry identifies (plugins/<id>/plugin.jsonresolved from the entry'sdirectoryfield). Require exactly 28 distinct ODIN package entries; reject duplicate, missing, out-of-root, or non-file paths. Do not discover or add unrelated files to make the check pass. Done when: the manifests for all 28 catalog entries are collected. -
Parse every collected file according to its declared data format and extract each release version field. Record the file path, field, parsed value, and whether it matches the canonical version. A missing, malformed, non-string, or empty field is a mismatch, not an assumed value. Done when: every collected file is parsed and its version field is recorded with match status.
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.
- 1mo ago First seen · 42 lines · 59 tokens per session scan A 8084b2745435
lockstep-version-guard is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (39 stars, last pushed 27d ago), licensed Apache-2.0. It adds 59 tokens to every session and 782 once invoked, about $0.0002 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 2026-09-04.
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