Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add sk-lim19f/Hypomnema/plugin install hypoWrote 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/commands/sk-lim19f/hypomnema/doctor)<a href="https://agentmods.dev/commands/sk-lim19f/hypomnema/doctor"><img src="https://agentmods.dev/badge/commands/sk-lim19f/hypomnema/doctor/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/commands/sk-lim19f/hypomnema/doctor"><img src="https://agentmods.dev/badge/commands/sk-lim19f/hypomnema/doctor.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 | $0.00041 | $0.01044 |
| Opus 5 | $0.00020 | $0.00522 |
| Sonnet 5 | $0.00008 | $0.00209 |
| Haiku 4.5 | $0.00004 | $0.00104 |
Grade B, and why
doctor scanned grade B with 1 finding 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 5d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
- `~/.claude/settings.json` contains all required hook registrations How it starts
The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are running /hypo:doctor. Verify the health of the current Hypomnema wiki installation.
What this checks
- Wiki root directory exists and has
hypo-config.mdmarker - Required subdirectories and baseline files are present
- Claude Code hook files are installed in
~/.claude/hooks/ ~/.claude/settings.jsoncontains all required hook registrations- Git repository and remote origin are configured
- No broken
[[wiki-link]]references - No overdue or missing
verify_byfields on tracked pages
Step 1 — Resolve Hypomnema directory
Bundled scripts here run via ${CLAUDE_PLUGIN_ROOT}/scripts/. To resolve that package root: if ${CLAUDE_PLUGIN_ROOT} is already an absolute path, use it; otherwise read pkgRoot from ~/.claude/hypo-pkg.json (only when non-empty and the target script exists under it); otherwise use the hypo@hypomnema (or legacy hypomnema@hypomnema) installPath in ~/.claude/plugins/installed_plugins.json; if none resolve, stop and tell the user to run hypomnema upgrade --apply (or /hypo:upgrade on a plugin install) or reinstall instead of guessing the cache layout.
If the user specified a Hypomnema directory, pass it as --hypo-dir="<path>". Otherwise omit the flag and the script resolves the Hypomnema root automatically: HYPO_DIR env → hypo-config.md scan → ~/hypomnema default.
Step 2 — Run the doctor script
node ${CLAUDE_PLUGIN_ROOT}/scripts/doctor.mjs [--hypo-dir="<path>"] [--json]
--hypo-dir=<path>— override Hypomnema root (takes precedence overHYPO_DIRenv and auto-scan)--json— output results as a JSON array (useful for programmatic use)
Step 3 — Report results
Show the script output verbatim. Each line is prefixed with:
✓— check passed⚠— warning (not blocking, but worth fixing)✗— failure (installation is broken)
Then show the summary line: Result: N passed, N warnings, N failed
Step 4 — Recommend fixes
For any ✗ failures:
- Missing Hypomnema root or required directories/files → run
/hypo:init. - 0 hook files installed → run
/hypo:init. - 0 hook registrations in settings.json → run
/hypo:init. Hook execution smoke testfailed → show the stderr excerpt in the detail verbatim; it names the cause. The repair depends on the channel, and/hypo:initis only right on one of them. IfHook files installedsays "provided by the plugin loader", the install is plugin-managed and/hypo:initdeliberately leaves core hooks alone: tell the user to re-install the plugin. Otherwise (npm or manual install)/hypo:initrepairs an incomplete copy. When the excerpt is not a missing module, have the user run the hook directly in their shell (echo '{}' | node <the path in the detail>) and read the error there.
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.
- 5d ago Changed · +14 lines 916a3765e63c
- 9d ago First seen · 67 lines · 41 tokens per session scan B 4f9ecac96e2d
doctor is a command published in the GitHub repository sk-lim19f/Hypomnema (11 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 1,044 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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