speckit-constitution SKILL.md skillA
This file is byte-identical to the first copy the registry indexed, one of 3 indexed copies. Same content hash, so the same checks give both the same grade.
speckit-constitution from vizier-lab/vizier is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vizier-lab/vizier/speckit-constitution@git:20260813.0d20dc4Pins git:20260813.0d20dc4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vizier-lab/vizier
- Path
.claude/skills/speckit-constitution/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260813.0d20dc4, committed Aug 13, 2026
- Size
- 8,695 bytes
- Repository stars
- 12
- License
- MIT
Create or update the project constitution from interactive or provided principle inputs, ensuring all dependent templates stay in sync.
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
## User Input
```text
$ARGUMENTS
```
You **MUST** consider the user input before proceeding (if not empty).
## Pre-Execution Checks
**Check for extension hooks (before constitution update)**:
- Check if `.specify/extensions.yml` exists in the project root.
- If it exists, read it and look for entries under the `hooks.before_constitution` key
- If the YAML cannot be parsed or is invalid, skip hook checking silently and continue normally
- Filter out hooks where `enabled` is explicitly `false`. Treat hooks without an `enabled` field as enabled by default.
- For each remaining hook, do **not** attempt to interpret or evaluate hook `condition` expressions:
- If the hook has no `condition` field, or it is null/empty, treat the hook as executable
- If the hook defines a non-empty `condition`, skip the hook and leave condition evaluation to the HookExecutor implementation
- When constructing slash commands from hook command names, replace dots (`.`) with hyphens (`-`). For example, `speckit.git.commit` → `/speckit-git-commit`.
- For each executable hook, output the following based on its `optional` flag:
- **Optional hook** (`optional: true`):
```
## Extension Hooks
…Read the whole file at its exact version.
How to install
mdr add vizier-lab/vizier/speckit-constitution@sha256:c1a044aba243ca6aThe line at the top of this page pins the label git:20260813.0d20dc4, 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_6ujmmoiaupd5d6ll)
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Versions
The registry has recorded 1 version of this file, committed on Aug 13, 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 (8695 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
vizier-lab/vizier · 12 stars · license MIT · pushed 2026-10-23 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_6ujmmoiaupd5d6ll GET https://markdownregistry.com/api/v1/resolve?ref=vizier-lab/vizier/speckit-constitution GET https://markdownregistry.com/api/v1/blob/c1a044aba243ca6aff627fb5e4404feb6f1108d4f7dd174631bee3ae477d6c15
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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