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/commands/marcel-bich/marcel-bich-claude-marketplace/migrate)<a href="https://agentmods.dev/commands/marcel-bich/marcel-bich-claude-marketplace/migrate"><img src="https://agentmods.dev/badge/commands/marcel-bich/marcel-bich-claude-marketplace/migrate/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/marcel-bich/marcel-bich-claude-marketplace/migrate"><img src="https://agentmods.dev/badge/commands/marcel-bich/marcel-bich-claude-marketplace/migrate.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 | $0.00015 | $0.00434 |
| Opus 5 | $0.00008 | $0.00217 |
| Sonnet 5 | $0.00003 | $0.00087 |
| Haiku 4.5 | $0.00002 | $0.00043 |
Grade A, and why
migrate scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Migrate a repo into .credo/
Bring an existing repo into the credo target form: scaffold .credo/, classify and place
its process artifacts, turn open work into credo items, self-audit, and (only with the
user) tidy the originals.
- Load the skill
migrateand follow it end to end. It defines the full procedure and the safety model; do not improvise around it. - This is a long, multi-phase, subagent-heavy operation. Delegate the work (inventory,
classification, item cutting, and especially the self-audit) to subagents per the
credo
orchestrationrules, and keep thesafetyskill in force throughout. - The whole procedure is copy-only and additive: originals are never touched until the
final step. Step 8 (moving originals into
.deleted/) is ALWAYS user-gated - never move or remove any original autonomously; confirm with the user first. - Once
.credo/is scaffolded, record this directory as opted-in. Migrating is an explicit act of setting credo up here, so this FORCES the accepted state, overriding any earlier/credo:disable(declined) for this directory:bash "${CLAUDE_PLUGIN_ROOT}/scripts/credo-dir-decision.sh" set accepted - Once
.credo/is scaffolded, offer to capture per-repo special rules (credorules): ask whether this repo should carry any autonomy-widening grants (for example "restarting local services is always allowed") and, on a yes, write them verbatim into.credo/RULES.mdvia therulesskill.
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.
- 12d ago First seen · 38 lines · 15 tokens per session scan A 5295b650cfc6
migrate is a command published in the GitHub repository Marcel-Bich/marcel-bich-claude-marketplace (13 stars, last pushed yesterday), licensed MIT. It adds 15 tokens to every session and 434 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 2026-08-30.
Other commands, from other repositories
migrate
Generate and manage database migrations.
test-suite
Run comprehensive test suite with coverage analysis.
context-stats
Display context window usage and token statistics.
security-scan
Run security audit on codebase.
assemble-team
Assemble a pre-built agent team for parallel work - review, feature, debug, cross-platform, full-stack, or research.
run
Execute prompt(s) from ./prompts/ with automatic archiving - for structured prompt-based work.