memento:lint SKILL.md skillA
memento:lint from aiyo28/memento-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aiyo28/memento-os/memento:lint@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aiyo28/memento-os
- Path
skills/memento-lint/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed May 20, 2026
- Size
- 4,167 bytes
- Repository stars
- 4
- License
- MIT
Validate every reasoning artifact in vault _context.md tables against schema rules. [D]/[I] need an invalidates clause, [S] needs an activation clause, [E] needs a fix: line, every artifact needs # number + priority + YYYY-MM-DD date. Exit non-zero on violation so it runs as a hook or in CI. Triggers: "lint vault", "validate artifacts", "check artifact schema", "memento lint", "are my decisions valid".
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
# /memento:lint
Enforce the reasoning-artifact schema across every `_context.md` in a vault. Prose templates can't do this — that's the point.
## What gets checked
| Rule | Applies to | Required text (case-insensitive) |
|------|-----------|----------------------------------|
| R1 | `[D]`, `[I]` | `invalidates if` / `invalidates when` / `dies if` |
| R2 | `[S]` | `Activation:` / `activates when` (use `--strict` to require literal `Activation:`) |
| R3 | `[E]` | `fix:` |
| R4 | all | `#` column non-empty |
| R5 | all | priority column non-empty |
| R6 | all | row contains a `YYYY-MM-DD` date |
`[I]` shares R1 with `[D]` because the inline grammar documented in `session-complete` is identical (`[I] insight — invalidates if condition`).
## How to invoke
### Default — lint the current vault
```bash
python3 ${MEMENTO_PLUGIN_ROOT:-skills/memento-lint}/lint.py
```
The script discovers the vault root via:
1. The path argument if provided
2. The `$MEMENTO_VAULT_ROOT` env var
3. The current working directory
### Common flags
```bash
# Lint a specific vault
python3 lint.py ~/Documents/Developer/knowledge-os
# Strict mode — require literal "Activation:" for all [S]
…Read the whole file at its exact version.
How to install
mdr add aiyo28/memento-os/memento:lint@sha256:09c9e2677bf1479bThe line at the top of this page pins the label v1.0.0, 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_5u7g6h3m2hla36g7)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 20, 2026.
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 (4167 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
aiyo28/memento-os · 4 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5u7g6h3m2hla36g7 GET https://markdownregistry.com/api/v1/resolve?ref=aiyo28/memento-os/memento:lint GET https://markdownregistry.com/api/v1/blob/09c9e2677bf1479bab5f652890f5a176c1961dfd89f2bd2464bab0835293a554
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.