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/rad-security/claude-code-plugin/cowork-installnpx skills add rad-security/claude-code-plugin --skill cowork-installgit clone --depth 1 https://github.com/rad-security/claude-code-pluginWhat 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 | $0.00036 | $0.00168 |
| Opus 5 | $0.00018 | $0.00084 |
| Sonnet 5 | $0.00007 | $0.00034 |
| Haiku 4.5 | $0.00004 | $0.00017 |
Grade A, and why
cowork-install scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
AgentKeeper Cowork Install
Install the AgentKeeper Cowork hook from the bundled plugin scripts:
"$CLAUDE_PLUGIN_ROOT/scripts/cowork-install.sh"
If $CLAUDE_PLUGIN_ROOT is not available, resolve the plugin root from the
current skill directory and run scripts/cowork-install.sh.
After the script completes, tell the user:
AgentKeeper Cowork hooks are installed. Quit Claude Desktop fully (Cmd-Q),
relaunch it, then start a new Cowork chat. Run /agentkeeper:cowork-status to
check the install state.
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.
- yesterday First seen · 24 lines · 36 tokens per session scan A 500b2ecffbd5
cowork-install is a skill published in the GitHub repository rad-security/claude-code-plugin (2 stars, last pushed 26d ago), licensed MIT. It adds 36 tokens to every session and 168 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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