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 TimboGP/timbogp-marketplace/plugin install lean-coachWrote 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/timbogp/timbogp-marketplace/lean-role)<a href="https://agentmods.dev/commands/timbogp/timbogp-marketplace/lean-role"><img src="https://agentmods.dev/badge/commands/timbogp/timbogp-marketplace/lean-role/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/timbogp/timbogp-marketplace/lean-role"><img src="https://agentmods.dev/badge/commands/timbogp/timbogp-marketplace/lean-role.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 | $0.00023 | $0.00384 |
| Opus 5 | $0.00012 | $0.00192 |
| Sonnet 5 | $0.00005 | $0.00077 |
| Haiku 4.5 | $0.00002 | $0.00038 |
Grade A, and why
lean-role 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
/lean-role
Switch the agent into a role/persona. Drive this with the lean-roles skill.
Role: $ARGUMENTS. If empty or "what can you play?", list the cast (one line each from ${CLAUDE_PLUGIN_ROOT}/reference/roles.md) and ask which.
Procedure
- Map the argument to a role:
- business-partner → collaborative co-founder (brainstorm, honest sparring) →
lean-roles. - devils-advocate → relentless skeptic (pre-mortem, attack the riskiest assumption) →
lean-roles. - mentor → direct advisor (review the model, prioritize next moves) →
lean-roles(or thelean-mentoragent for a one-shot review). - customer → interview counterpart → hand to
customer-interview. - investor → pitch counterpart → hand to
investor-pitch.
- business-partner → collaborative co-founder (brainstorm, honest sparring) →
- Load
.lean/so the persona engages this venture, then run the role-play protocol (${CLAUDE_PLUGIN_ROOT}/reference/roles.md): announce entering character, stay in role (honor[bracket]breaks), debrief ondebrief. - Capture anything load-bearing into
.lean/risks.md/.lean/PROGRESS.md, then hand back to the coach or route onward.
Name the role on entry so the user always knows whether they're talking to the coach or a character.
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 · 25 lines · 23 tokens per session scan A 3f60f1e27c5a
lean-role is a command published in the GitHub repository TimboGP/timbogp-marketplace (3 stars, last pushed 2mo ago), licensed MIT. It adds 23 tokens to every session and 384 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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