Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add liqiongyu/lenny_skills_plus --skill marketplace-liquiditygit clone --depth 1 https://github.com/liqiongyu/lenny_skills_plusWrote 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/liqiongyu/lenny_skills_plus/marketplace-liquidity)<a href="https://agentmods.dev/skills/liqiongyu/lenny_skills_plus/marketplace-liquidity"><img src="https://agentmods.dev/badge/skills/liqiongyu/lenny_skills_plus/marketplace-liquidity/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/liqiongyu/lenny_skills_plus/marketplace-liquidity"><img src="https://agentmods.dev/badge/skills/liqiongyu/lenny_skills_plus/marketplace-liquidity.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 | $0.02512 |
| Opus 5 | $0.00012 | $0.01256 |
| Sonnet 5 | $0.00005 | $0.00502 |
| Haiku 4.5 | $0.00002 | $0.00251 |
Grade A, and why
marketplace-liquidity 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.
How it starts
The opening of the file, as written. The whole thing — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Marketplace Liquidity Management
Scope
Covers
- Defining liquidity as reliability: how often a user can complete the marketplace’s core action (find → match → transact) within an acceptable time and quality threshold
- Measuring liquidity where it actually happens (by “local markets” like geo × category × time window), not just in global averages
- Diagnosing liquidity failure modes: fragmentation, supply–demand imbalance (“flip-flop”), matching/mechanics issues, and quality/trust breakdowns
- Designing a practical liquidity operating system: scorecards, weekly review cadence, and a “whac-a-mole” rebalancing plan (move attention/inventory/incentives)
- Producing an actionable experiment backlog to improve liquidity (supply, demand, matching, pricing/incentives, trust & safety)
When to use
- “We need to improve marketplace liquidity / match rate / fill rate”
- “Time-to-match is too slow” / “buyers can’t find availability”
- “Supply and demand are imbalanced across cities/categories”
- “Our marketplace feels unreliable” / “conversion drops due to no availability”
- “We need a liquidity dashboard + operating cadence + experiments”
When NOT to use
- You don’t operate a two-sided marketplace (no matching between supply and demand).
- The primary problem is value proposition / ICP (use
problem-definitionormeasuring-product-market-fit). - You only need pricing changes (use
pricing-strategy) without a liquidity diagnosis. - You need a general growth plan unrelated to matching reliability (use
designing-growth-loops/retention-engagement). - You want to measure whether you have product-market fit (use
measuring-product-market-fit); liquidity assumes the core value proposition is already validated. - You need to design or optimize a referral/viral/content growth loop (use
designing-growth-loops); this skill focuses on match reliability, not acquisition loops. - You need a retention or engagement playbook for a non-marketplace product (use
retention-engagement).
What ships with it
13 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- eval/eval_config.json 1.0 KB
- eval/SHOWCASE.md 5.2 KB
- eval/with_skill.md 29 KB
- eval/without_skill.md 13 KB
- README.md 1.8 KB
- references/CHECKLISTS.md 2.2 KB
- references/EXAMPLES.md 2.1 KB
- references/INTAKE.md 1.8 KB
- references/RUBRIC.md 4.9 KB
- references/SOURCE_SUMMARY.md 1.8 KB
- references/TEMPLATES.md 3.7 KB
- references/WORKFLOW.md 4.1 KB
- skillpack.json 375 B
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 · 143 lines · 23 tokens per session scan A 1d876d5066ed
marketplace-liquidity is a skill published in the GitHub repository liqiongyu/lenny_skills_plus (52 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 23 tokens to every session and 2,512 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.
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