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/nexus-substrate/nexus-agents/documentation-managementnpx skills add nexus-substrate/nexus-agents --skill documentation-managementgit clone --depth 1 https://github.com/nexus-substrate/nexus-agentsWrote 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/nexus-substrate/nexus-agents/documentation-management)<a href="https://agentmods.dev/skills/nexus-substrate/nexus-agents/documentation-management"><img src="https://agentmods.dev/badge/skills/nexus-substrate/nexus-agents/documentation-management.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 5.1 | $0.00045 | $0.22007 |
| Opus 5 | $0.00023 | $0.11003 |
| Sonnet 5 | $0.00009 | $0.04401 |
| Haiku 4.5 | $0.00005 | $0.02201 |
Grade C, and why
documentation-management scanned grade C with 2 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 today.
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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- PIPELINE NOTE: inject-governance.ts `checkToolOutputConsistency()` now FAILS when it scanned zero tool files (#5298, 2026-08-30) — SEMANTIC. It returned `true` on `violations.length === 0` over `scanToolFiles()`, wh Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
<!-- PIPELINE NOTE: inject-governance.ts TOOL_DESCRIPTIONS + README_TOOL_DESCRIPTIONS extended for compare_data_feeds (#2297, child of #2293, 2026-05-04). 37th MCP tool — diffs two YAML/JSON feeds along coverage and per- How it starts
The opening of the file, as written. The whole thing — 477 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Documentation Management Skill
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.
- today Changed · +4 lines 4ae805e5a97f
- yesterday Changed · +6 lines 4adaa1d6e9a3
- 3d ago Changed · +3 lines e244fd1fd9ca
- 5d ago Changed · +1 lines scan A → C cc0de98dfc21
- 6d ago First seen · 463 lines · 45 tokens per session scan A 03e7c5a403e4
documentation-management is a skill published in the GitHub repository nexus-substrate/nexus-agents (18 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 22,007 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (hidden instructions, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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