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/ericboehs/claude-plugins/gist-updatenpx skills add ericboehs/claude-plugins --skill gist-updategit clone --depth 1 https://github.com/ericboehs/claude-pluginsWhat 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 | $0.00033 | $0.00299 |
| Opus 5 | $0.00016 | $0.00150 |
| Sonnet 5 | $0.00007 | $0.00060 |
| Haiku 4.5 | $0.00003 | $0.00030 |
Grade A, and why
gist-update 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 2d 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
Update an existing GitHub Gist
Update an existing GitHub Gist from a local file: $ARGUMENTS
Arguments can be:
- Just a file path (will search for existing gist by filename)
- A file path and gist ID/URL
Steps
- If no gist ID provided, try to find an existing gist:
gh gist list --limit 100and search for the filename- Or ask the user for the gist ID/URL
- Update the gist file:
gh gist edit <gist_id> <filepath> - Update the README comment if it exists:
- Get the comment ID:
gh api /gists/<gist_id>/comments --jq '.[0].id' - Update it:
gh api -X PATCH /gists/<gist_id>/comments/<comment_id> -f body='<updated_readme>' - If no comment exists, create one with the README
- Get the comment ID:
- The README should reflect any new features or changes in the updated file
- Report the gist URL when complete
Note: Use single quotes around the body and escape any single quotes in the content with '''
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.
- 2d ago First seen · 30 lines · 33 tokens per session scan A c72595a99a5b
gist-update is a skill published in the GitHub repository ericboehs/claude-plugins (2 stars, last pushed 9d ago), licensed MIT. It adds 33 tokens to every session and 299 once invoked, about $0.0002 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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