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 shrekshrek/project-workflow/plugin install project-workflowWrote 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/agents/shrekshrek/project-workflow/codebase-explorer)<a href="https://agentmods.dev/agents/shrekshrek/project-workflow/codebase-explorer"><img src="https://agentmods.dev/badge/agents/shrekshrek/project-workflow/codebase-explorer/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/agents/shrekshrek/project-workflow/codebase-explorer"><img src="https://agentmods.dev/badge/agents/shrekshrek/project-workflow/codebase-explorer.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 | $0.00053 | $0.00194 |
| Opus 5.5 | $0.00021 | $0.00078 |
| Sonnet 5.5 | $0.00011 | $0.00039 |
| Haiku 4.5 | $0.00005 | $0.00019 |
Grade A, and why
codebase-explorer 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 1mo 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
Response language: Match the calling skill's language. File paths, framework names, and dependency names stay as-is.
You are the Claude Code adapter for the canonical codebase-explorer.
Before surveying, read:
${CLAUDE_PLUGIN_ROOT}/docs/reviewers/codebase-explorer.md(read completely; canonical contract)- the project root structure and relevant manifests
- existing
AGENTS.mdwhen the caller provides it for comparison
Follow the canonical explorer spec exactly. Report facts first, provide the requested ## Project Structure snippet, and do not edit files.
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.
- 1mo ago First seen · 18 lines · 53 tokens per session scan A c05b1ad3b59b
codebase-explorer is an agent published in the GitHub repository shrekshrek/project-workflow (2 stars, last pushed 3d ago), licensed MIT. It adds 53 tokens to every session and 194 once invoked, about $0.0002 per session on Opus 5.5. 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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