pp-epa-echo SKILL.md skillA
pp-epa-echo from mvanhorn/printing-press-library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mvanhorn/printing-press-library/pp-epa-echo@git:20260817.d5a007cPins git:20260817.d5a007c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mvanhorn/printing-press-library
- Path
cli-skills/pp-epa-echo/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260817.d5a007c, committed Aug 17, 2026
- First version recorded
- Jul 20, 2026
- Size
- 24,938 bytes
- Repository stars
- 2,075
- License
- none declared
Printing Press CLI for EPA ECHO facility resolution, transparent compliance evidence, and local change history.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
<!-- GENERATED FILE — DO NOT EDIT.
This file is a verbatim mirror of library/other/epa-echo/SKILL.md,
regenerated post-merge by tools/generate-skills/. Hand-edits here are
silently overwritten on the next regen. Edit the library/ source instead.
See the repository agent guide, section "Generated artifacts: registry.json, cli-skills/". -->
# Epa Echo — Printing Press CLI
## Prerequisites: Install the CLI
This skill drives the `epa-echo-pp-cli` binary. **You must verify the CLI is installed before invoking any command from this skill.** If it is missing, install it first:
1. Install via the Printing Press installer. It defaults binaries to `$HOME/.local/bin` on macOS/Linux and `%LOCALAPPDATA%\Programs\PrintingPress\bin` on Windows:
```bash
npx -y @mvanhorn/printing-press-library install epa-echo --cli-only
```
2. Verify: `epa-echo-pp-cli --version`
3. Ensure the reported install directory is on `$PATH` for the agent/runtime that will invoke this skill.
…Read the whole file at its exact version.
How to install
mdr add mvanhorn/printing-press-library/pp-epa-echo@sha256:1b329dd8764a7013The line at the top of this page pins the label git:20260817.d5a007c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_lc3bj2arssztaz3a)
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Versions
The registry has recorded 2 versions of this file, between Jul 20, 2026 and Aug 17, 2026, about one every 28 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260817.d5a007c latest | 2026-08-17 | d5a007c | 24,938 B | A | view · diff |
| git:20260720.61c74e2 | 2026-07-20 | 61c74e2 | 24,938 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (24938 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
mvanhorn/printing-press-library · 2,075 stars · license none declared · pushed 2026-10-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lc3bj2arssztaz3a GET https://markdownregistry.com/api/v1/resolve?ref=mvanhorn/printing-press-library/pp-epa-echo GET https://markdownregistry.com/api/v1/blob/1b329dd8764a7013ae89945486ace142e197a117b0b9876a304963fdb970f33e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.