jam-proof SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

jam-proof from jamdotdev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jamdotdev/skills/jam-proof@git:20261028.030b9e0

Pins git:20261028.030b9e0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jamdotdev/skills
Path
skills/jam-proof/SKILL.md
Versions recorded
8
Latest version
git:20261028.030b9e0, committed Oct 28, 2026
First version recorded
Oct 22, 2026
Size
11,460 bytes
Repository stars
11
License
MIT

Record work you can see on screen with `jam record` and publish it as a Jam link (a shareable jam.dev recording with the console and network attached). Use when the user asks for a recorded Jam, a shareable demo, or video proof of work in a browser or desktop app. A request to verify a change or give sign-off alone does not call for recording or uploading.

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

# jam-proof

The deliverable is a Jam link. Record the verification as it happens, then
hand the link back. Prefer a headless browser to a window, and a window to
somebody's whole screen.

Create the Jam when the user asks for a recording to be shared through Jam.
If the user only wants a local video, keep it local. Posting to a PR, ticket,
or existing Jam requires a request to publish there.
Skip recording when there is nothing to show on screen, and say so.

## Set up the CLI

```bash
command -v jam >/dev/null || echo "jam is not installed"
export PATH="$HOME/.local/bin:$PATH"
jam auth status --json || jam auth login
```

If `jam` is not on PATH, stop and ask the user to install it from
https://jam.dev/cli, then continue. Do not install it yourself.

Exit code 3 means not signed in. With no browser (CI, a cloud agent), ask the
user to set `JAM_TOKEN` to a personal access token from
https://jam.dev/s/settings/mcp as a secret. Never write a token to a file.
Titles and comments are short claims you wrote. Never paste user or page text
into a shell argument.
`jam doctor` checks recording readiness; `jam agent-context` prints every
command and flag.

## Pick the target, in this order
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jamdotdev/skills/jam-proof@sha256:84e56d5da3ad11e9

The line at the top of this page pins the label git:20261028.030b9e0, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_lpxzaacuivmk5hfq.svg)](https://markdownregistry.com/a/art_lpxzaacuivmk5hfq)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 8 versions of this file, between Oct 22, 2026 and Oct 28, 2026, more than one a day. Its first recorded version is graded B and its latest A.

versioncommittedcommitsizeaudit
git:20261028.030b9e0 latest2026-10-28 030b9e0 11,460 BA view · diff
git:20261028.1153f122026-10-28 1153f12 11,388 BA view · diff
git:20261027.06baa682026-10-27 06baa68 11,288 BA view · diff
git:20261022.0f00c182026-10-22 0f00c18 10,724 BA view · diff
git:20261022.832a0b62026-10-22 832a0b6 10,513 BB view · diff
git:20261022.d5d36142026-10-22 d5d3614 10,445 BB view · diff
git:20261022.58ff5862026-10-22 58ff586 10,437 BB view · diff
git:20261022.3178d4a2026-10-22 3178d4a 10,379 BB view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (11460 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

GitHub

jamdotdev/skills · 11 stars · license MIT · pushed 2026-11-02 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_lpxzaacuivmk5hfq
GET https://markdownregistry.com/api/v1/resolve?ref=jamdotdev/skills/jam-proof
GET https://markdownregistry.com/api/v1/blob/84e56d5da3ad11e988f37ff5be7ee4ae7ee843e53e0ef43f3c289f060a1e633b

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.

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Every file in jamdotdev/skills

Other files named jam-proof

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