speckit-constitution

speckit-constitution is a skill for Claude Code from hugr-lab/mssql-extension. It costs 19 tokens per session (2,171 once invoked), scanned A, a copy of speckit-constitution, MIT.

A workflow for creating or updating a project constitution: a document of guiding principles for the project. It also keeps related templates aligned and checks configured pre-update hooks.

In plain words
What is it for?
Use it when establishing project rules, revising existing principles, or running the constitution update process in a Spec Kit project.
Why use it?
It helps ensure project principles are applied consistently and that dependent planning templates do not become outdated.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Good fit Use it when establishing project rules, revising existing principles, or running the constitution update process in a Spec Kit project.

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Install with agentmods
npx agentmods add skills/hugr-lab/mssql-extension/speckit-constitution
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add hugr-lab/mssql-extension --skill speckit-constitution
Clone the repo
git clone --depth 1 https://github.com/hugr-lab/mssql-extension

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for speckit-constitution

README.md
[![agentmods](https://agentmods.dev/badge/skills/hugr-lab/mssql-extension/speckit-constitution/github.svg)](https://agentmods.dev/skills/hugr-lab/mssql-extension/speckit-constitution)
Your own site
<a href="https://agentmods.dev/skills/hugr-lab/mssql-extension/speckit-constitution"><img src="https://agentmods.dev/badge/skills/hugr-lab/mssql-extension/speckit-constitution/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for speckit-constitution

Your own site · 80×15
<a href="https://agentmods.dev/skills/hugr-lab/mssql-extension/speckit-constitution"><img src="https://agentmods.dev/badge/skills/hugr-lab/mssql-extension/speckit-constitution.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,171 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.02171
Opus 5 $0.00010 $0.01086
Sonnet 5 $0.00004 $0.00434
Haiku 4.5 $0.00002 $0.00217

Measured 6d ago against content hash a93047917a5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

speckit-constitution scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to speckit-constitution — 67 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/speckit-constitution/SKILL.md · 181 lines

How it starts

The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.

User Input

$ARGUMENTS

You MUST consider the user input before proceeding (if not empty).

Scope Guard

This command's own work is limited to updating the project constitution itself. Dependent templates and commands read the constitution at runtime and are not modified here.

  • Classify every part of the user input as either constitution content or a separate, non-governance intent.
  • If the input includes feature implementation, code generation, refactoring, building, or deployment requests, you MUST NOT execute them. Extract them as deferred intents instead.
  • You MUST NOT create, modify, or delete application source files, feature routes, components, tests, deployment files, or other artifacts unrelated to the constitution workflow.
  • If it is unclear whether an instruction is constitution content, ask for clarification before making changes.
  • After completing the constitution update, include a Next Actions section for each deferred intent. List the original intent and suggest the appropriate follow-up Spec Kit command, such as /speckit-specify, without invoking it.
  • If there are no non-governance intents, omit the Next Actions section.

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 command invocations 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
      
      **Optional Pre-Hook**: {extension}
      Command: `/{command}`
      Description: {description}
      
      Prompt: {prompt}
      To execute: `/{command}`
      
    • Mandatory hook (optional: false):
      ## Extension Hooks
      
      **Automatic Pre-Hook**: {extension}
      Executing: `/{command}`
      EXECUTE_COMMAND: {command}
      
      Wait for the result of the hook command before proceeding to the Outline.
      
      After emitting the block above you MUST actually invoke the hook and wait for it to finish before continuing. Run it the same way you would run the command yourself in this agent/session (the invocation may differ from the literal {command} id shown above, e.g. a skills-mode agent runs it as /skill:speckit-... or $speckit-...). Emitting the block alone does not run the hook.
  • If no hooks are registered or .specify/extensions.yml does not exist, skip silently

Read the full file on GitHub · 181 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago Changed · +23 lines · -8 tokens per session a93047917a5f
  2. 10d ago First seen · 158 lines · 27 tokens per session scan A c1a044aba243

Subscribe to this mod's changes

speckit-constitution is a skill published in the GitHub repository hugr-lab/mssql-extension (129 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 2,171 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to speckit-constitution, differing in 67 lines, and is treated as a copy.

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