AGENTS.md@meta/feature-flagsA

AGENTS.md@meta/feature-flags from vellum-ai/vellum-assistant is an AGENTS.md file: the standing instructions coding agents read in that repo.

Install it, pinned
mdr add vellum-ai/vellum-assistant/meta/feature-flags/AGENTS.md@git:20260916.15e24e5

Pins git:20260916.15e24e5 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
AGENTS.md file
Repository
vellum-ai/vellum-assistant
Path
meta/feature-flags/AGENTS.md
Versions recorded
8
Latest version
git:20260916.15e24e5, committed Sep 16, 2026
First version recorded
Jun 1, 2026
Size
6,930 bytes
Repository stars
1,483
License
MIT

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

# Feature Flags — Agent Instructions

## Naming Convention

Feature flag keys are **simple kebab-case strings** with no prefix or suffix:

```
"browser"
"a2a-channel"
"conversation-starters"
```

The `id` and `key` fields in `feature-flag-registry.json` **must match** and both use kebab-case. client-scope flags follow the same convention:

```
"user-hosted-enabled"
"quick-input"
"expand-completed-steps"
```

**Do not** use a `feature_flags.` prefix, `.enabled` suffix, or snake_case. The old canonical format (`feature_flags.<id>.enabled` / `snake_case_key`) is being retired.

## Adding a New Flag

1. Add an entry to `meta/feature-flags/feature-flag-registry.json` with matching `id` and `key`:

   ```json
   {
     "id": "my-new-flag",
     "scope": "assistant",
     "key": "my-new-flag",
     "label": "My New Flag",
     "description": "What this flag controls",
     "defaultEnabled": false
   }
   ```

   Use `"defaultEnabled": false` for new gated features unless the feature is intentionally GA. Locally declared flags that are missing from a remote platform snapshot fall back to this registry default; undeclared flags fail closed.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add vellum-ai/vellum-assistant/meta/feature-flags/AGENTS.md@sha256:5bc5f20528def2b9

The line at the top of this page pins the label git:20260916.15e24e5, 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_snt6q54o2z3pkkoa.svg)](https://markdownregistry.com/a/art_snt6q54o2z3pkkoa)

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

Versions

The registry has recorded 8 versions of this file, between Jun 1, 2026 and Sep 16, 2026, about one every 15 days.

versioncommittedcommitsizeaudit
git:20260916.15e24e5 latest2026-09-16 15e24e5 6,930 BA view · diff
git:20260916.cc621992026-09-16 cc62199 6,628 BA view · diff
git:20260909.ced60bb2026-09-09 ced60bb 6,652 BA view · diff
git:20260902.78b07e22026-09-02 78b07e2 6,194 BA view · diff
git:20260727.ff789292026-07-27 ff78929 2,473 BA view · diff
git:20260713.866aced2026-07-13 866aced 2,462 BA view · diff
git:20260709.42cd5f32026-07-09 42cd5f3 2,476 BA view · diff
git:20260601.d26f5a32026-06-01 d26f5a3 2,475 BA view

Audit of the latest version

A  14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Size between 200 bytes and 200 KB (6930 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

vellum-ai/vellum-assistant · 1,483 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_snt6q54o2z3pkkoa
GET https://markdownregistry.com/api/v1/resolve?ref=vellum-ai/vellum-assistant/meta/feature-flags/AGENTS.md
GET https://markdownregistry.com/api/v1/blob/5bc5f20528def2b97a5f61d2ec12b47382473cff0d6d61fabbf37ba07824c8cb

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: how to write a good AGENTS.md · AGENTS.md vs CLAUDE.md · which agent file does what.

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