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 Marcel-Bich/marcel-bich-claude-marketplace/plugin install credoWrote 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/marcel-bich/marcel-bich-claude-marketplace/enable)<a href="https://agentmods.dev/skills/marcel-bich/marcel-bich-claude-marketplace/enable"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/enable/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/skills/marcel-bich/marcel-bich-claude-marketplace/enable"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/enable.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 | $0.00121 | $0.00476 |
| Opus 5 | $0.00060 | $0.00238 |
| Sonnet 5 | $0.00024 | $0.00095 |
| Haiku 4.5 | $0.00012 | $0.00048 |
Grade A, and why
enable scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Enable credo here
Opt the current directory back in to credo. This flips the persistent per-directory decision to
accepted, overriding any earlier /credo:disable (declined). From here on credo treats this
directory as opted-in: the SessionStart hook re-feeds credo's command and skill knowledge, and
the one-time onboarding ASK no longer fires here.
When to use
- The user runs
/credo:enable. - The user says, in any wording, that they want credo on for this directory / repo - for example "enable credo here", "use credo here", "turn credo on here", "credo hier an", "credo hier aktivieren".
What it does
Record this directory as opted-in (persistent, per-directory - keyed by the git top-level else the current working directory; overrides an earlier declined):
"${CLAUDE_PLUGIN_ROOT}/scripts/credo-dir-decision.sh" set accepted
Confirm
Confirm in one or two short sentences, and point out the session-mode option, for example:
credo enabled for this directory - its knowledge is re-fed at the next SessionStart and the onboarding question no longer fires here. For a specific working style you can additionally set a session mode now:
/credo:session-active(intensive live collaboration) or/credo:session-passive(the agent carries most of the work, you answer clarifications).
Do not do anything else - this skill only enables credo for the directory. Setting a session mode is the user's call via the commands above.
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.
- 11d ago First seen · 46 lines · 121 tokens per session scan A 7772abfab156
enable is a skill published in the GitHub repository Marcel-Bich/marcel-bich-claude-marketplace (13 stars, last pushed yesterday), licensed MIT. It adds 121 tokens to every session and 476 once invoked, about $0.0006 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 2026-08-30.
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