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-canvas)<a href="https://agentmods.dev/commands/timbogp/timbogp-marketplace/lean-canvas"><img src="https://agentmods.dev/badge/commands/timbogp/timbogp-marketplace/lean-canvas/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-canvas"><img src="https://agentmods.dev/badge/commands/timbogp/timbogp-marketplace/lean-canvas.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 | $0.00022 | $0.00327 |
| Opus 5.5 | $0.00009 | $0.00131 |
| Sonnet 5.5 | $0.00004 | $0.00065 |
| Haiku 4.5 | $0.00002 | $0.00033 |
Grade A, and why
lean-canvas 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
/lean-canvas
Build or revise the Lean Canvas. Drive this with the lean-canvas skill.
Input: $ARGUMENTS (a one-line idea, a customer segment to brainstorm, or a path/“my existing canvas”; if empty, work from .lean/canvas.md or ask for the idea).
Procedure
- Read
${CLAUDE_PLUGIN_ROOT}/skills/lean-canvas/references/canvas-blocks.mdfor per-block guidance, and.lean/canvas.mdif it exists. - Fill the nine blocks in the recommended order (Customer Segments → Problem → UVP → Solution → Channels → Revenue → Cost → Key Metrics → Unfair Advantage), interrogating the assumption behind each rather than just filling boxes. Keep entries terse; every block is a hypothesis.
- Write
.lean/canvas.mdfrom the template at${CLAUDE_PLUGIN_ROOT}/skills/lean-canvas/assets/canvas-template.md, with a dated revision note. Brainstorm variants as separate canvases when there are plausibly different segments/models. - End with the one assumption that looks riskiest, and offer to hand off to
prioritize-risks.
Don't let the Solution block balloon — the model is the product, not the solution.
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 · 21 lines · 22 tokens per session scan A 5ace4a0b8889
lean-canvas is a command published in the GitHub repository TimboGP/timbogp-marketplace (3 stars, last pushed 13d ago), licensed MIT. It adds 22 tokens to every session and 327 once invoked, about $0.0001 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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