CLI Printing Press is a tool that creates Go command-line clients, Claude Code skills, and MCP servers for APIs and websites by studying their documentation and existing integrations. It is intended for AI agents and developers who need token-efficient command-line access to services and compound queries. The catalogue entries are skills, instructions, plugins, settings, and a hook related to using the generated tools and the press.
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 mvanhorn/cli-printing-press --skill printing-pressgit clone --depth 1 https://github.com/mvanhorn/cli-printing-pressWrote 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/mvanhorn/cli-printing-press/printing-press)<a href="https://agentmods.dev/skills/mvanhorn/cli-printing-press/printing-press"><img src="https://agentmods.dev/badge/skills/mvanhorn/cli-printing-press/printing-press.svg" alt="Measured on agentmods" height="20"></a>- Socket pass
- Snyk warn
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 | $0.00086 | $0.01537 |
| Opus 5 | $0.00043 | $0.00768 |
| Sonnet 5 | $0.00017 | $0.00307 |
| Haiku 4.5 | $0.00009 | $0.00154 |
Grade A, and why
printing-press 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 yesterday.
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 — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/printing-press
Result: A working Go CLI in $PRESS_LIBRARY/<api-slug>/, plus up to five dense
manuscripts archived to $PRESS_MANUSCRIPTS/<api-slug>/<run-id>/: research brief,
absorb manifest, build log, shipcheck proof, and live smoke proof when live testing ran.
Next consumer: The user, who runs the CLI or ships it, and the sibling skills that
take it from here: printing-press-polish for a second pass, printing-press-publish
for the public library, printing-press-retro for findings against the Press itself.
Done: Every feature approved at the absorb gate is implemented, shipcheck reached ship, the live dogfood matrix ran against real targets, the CLI is promoted, and the receipt ledger closes on the last phase.
Intent: The best useful CLI for an API without an hour of phase theater. Optimize for time-to-ship, not time-to-document: reuse prior research when it is already good enough, run the cheap high-signal checks early, fix blockers before polish.
Boundaries
- Never leak a secret. API key values, token values, passwords, and session cookies must never reach source, manuscripts, proofs, READMEs, HARs, receipts, or anything committed. Env var names and placeholders are safe. Phase 5.6 and publish apply references/secret-protection.md.
- Never ship untested.
go buildandverifypass-rate are structural signals, not correctness signals. A CLI that has not been through the live matrix in phases/18-dogfood-testing.md is not shippable, and a bug a 1-3 file edit resolves is fixed now, not filed for v0.2. - Never quote human-time estimates for sub-tasks ("~15-30 min", "quick fix"). The agent does the work, not the user; describe scope instead. The carve-outs are the genuinely time-bound: the whole run (30-60 minutes), tool installs, and the network-bound printing-press subcommands.
- Never sequence from memory. The receipt ledger decides which phase comes next; see references/phase-receipts.md.
What ships with it
44 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.
- phases/01-preflight.md 26 KB
- phases/02-run-initialization.md 6.1 KB
- phases/03-resolve-and-reuse.md 32 KB
- phases/04-research-brief.md 5.5 KB
- phases/05-pre-browser-sniff-auth-intelligence.md 4.2 KB
- phases/06-browser-sniff-gate.md 25 KB
- phases/07-crowd-sniff-gate.md 3.0 KB
- phases/08-ecosystem-absorb-gate.md 32 KB
- phases/09-api-reachability-gate.md 15 KB
- phases/10-generate.md 43 KB
- phases/11-build-the-goat.md 64 KB
- phases/12-shipcheck.md 10 KB
- phases/13-sync-param-drop-gate.md 3.9 KB
- phases/14-agentic-skill-review.md 5.5 KB
- phases/15-readme-skill-agents-correctness-audit.md 3.5 KB
- phases/16-agentic-output-review.md 1.9 KB
- phases/17-local-code-review.md 11 KB
- phases/18-dogfood-testing.md 14 KB
- phases/19-polish.md 5.0 KB
- phases/20-promote-and-archive.md 18 KB
- phases/21-next-steps.md 18 KB
- references/absorb-scoring.md 7.3 KB
- references/aggregator-pattern.md 5.2 KB
- references/auth-companion.md 11 KB
- references/browser-sniff-capture.md 86 KB
- references/codex-delegation.md 13 KB
- references/crowd-sniff.md 2.8 KB
- references/deepwiki-research.md 5.4 KB
- references/device-sniff-ble.md 19 KB
- references/dogfood-testing.md 2.5 KB
- references/fetch-docs.md 2.6 KB
- references/fetch-docs.sh 6.3 KB runs code
- references/known-specs.md 2.5 KB
- references/noi-examples.md 3.1 KB
- references/novel-features-subagent.md 17 KB
- references/oauth2-pkce-cli-checklist.md 5.0 KB
- references/per-source-rate-limiting.md 2.2 KB
- references/phase-receipts.md 3.8 KB
- references/run-resolution.md 11 KB
- references/scorecard-patterns.md 2.9 KB
- references/secret-protection.md 14 KB
- references/setup-checks.md 22 KB
- references/spec-format.md 21 KB
- references/ws-primary-pattern.md 2.0 KB
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.
- yesterday First seen · 98 lines · 86 tokens per session scan A db8463589cf6
printing-press is a skill published in the GitHub repository mvanhorn/cli-printing-press (4,644 stars, last pushed today), licensed MIT. It adds 86 tokens to every session and 1,537 once invoked, about $0.0004 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 2026-09-07.
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