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 commands/arescope/gemini-plugin-cc/challengegit clone --depth 1 https://github.com/arescope/gemini-plugin-ccWhat 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 | $0.00026 | $0.00247 |
| Opus 5 | $0.00013 | $0.00123 |
| Sonnet 5 | $0.00005 | $0.00049 |
| Haiku 4.5 | $0.00003 | $0.00025 |
Grade A, and why
challenge scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Run a challenge review via Gemini. Defaults to skepticism — assumes bugs exist.
Steps
-
Parse flags:
--base <ref>,--background,--wait,--model <alias>,--effort <level>Remaining positional args are the focus text (e.g./gemini:challenge focus on auth). -
Check diff size; use
AskUserQuestionif large (>500 lines): "This is a large diff. Run in background? [Y/n]" -
Run:
node "${CLAUDE_PLUGIN_ROOT}/scripts/gemini-companion.mjs" challenge $ARGUMENTS -
Return the output verbatim.
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 · 24 lines · 26 tokens per session scan A c17dbabc294b
challenge is a command published in the GitHub repository arescope/gemini-plugin-cc (6 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 26 tokens to every session and 247 once invoked, about $0.0001 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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