speckit-constitution

speckit-constitution is a skill for Claude Code, Codex from traverse-framework/traverse. It costs 27 tokens per session (1,136 once invoked), scanned A, original, Apache-2.0.

A project-constitution workflow that creates or updates a document of the project’s guiding principles and keeps related templates aligned.

In plain words
What is it for?
Use it to fill in or revise the constitution, derive missing principles from the project when needed, and update dependent project templates.
Why use it?
It gives the project lasting rules for making technical and product decisions, reducing conflicts between future specifications and plans.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/traverse-framework/traverse/speckit-constitution
Any agent
npx skills add traverse-framework/traverse --skill speckit-constitution
Clone the repo
git clone --depth 1 https://github.com/traverse-framework/traverse

Made for: Claude Code, Codex.

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/traverse-framework/traverse/speckit-constitution.svg)](https://agentmods.dev/skills/traverse-framework/traverse/speckit-constitution)
Your own site
<a href="https://agentmods.dev/skills/traverse-framework/traverse/speckit-constitution"><img src="https://agentmods.dev/badge/skills/traverse-framework/traverse/speckit-constitution.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,136 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00027 $0.01136
Opus 5 $0.00014 $0.00568
Sonnet 5 $0.00005 $0.00227
Haiku 4.5 $0.00003 $0.00114

Measured 4d ago against content hash 759dc367124e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d 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

Copies of this mod

2 near-identical copies found in the catalogue:

.agents/skills/speckit-constitution/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 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).

Outline

You are updating the project constitution at .specify/memory/constitution.md. This file is a TEMPLATE containing placeholder tokens in square brackets (e.g. [PROJECT_NAME], [PRINCIPLE_1_NAME]). Your job is to (a) collect/derive concrete values, (b) fill the template precisely, and (c) propagate any amendments across dependent artifacts.

Note: If .specify/memory/constitution.md does not exist yet, it should have been initialized from .specify/templates/constitution-template.md during project setup. If it's missing, copy the template first.

Follow this execution flow:

  1. Load the existing constitution at .specify/memory/constitution.md.

    • Identify every placeholder token of the form [ALL_CAPS_IDENTIFIER]. IMPORTANT: The user might require less or more principles than the ones used in the template. If a number is specified, respect that - follow the general template. You will update the doc accordingly.
  2. Collect/derive values for placeholders:

    • If user input (conversation) supplies a value, use it.
    • Otherwise infer from existing repo context (README, docs, prior constitution versions if embedded).
    • For governance dates: RATIFICATION_DATE is the original adoption date (if unknown ask or mark TODO), LAST_AMENDED_DATE is today if changes are made, otherwise keep previous.
    • CONSTITUTION_VERSION must increment according to semantic versioning rules:
      • MAJOR: Backward incompatible governance/principle removals or redefinitions.
      • MINOR: New principle/section added or materially expanded guidance.
      • PATCH: Clarifications, wording, typo fixes, non-semantic refinements.
    • If version bump type ambiguous, propose reasoning before finalizing.
  3. Draft the updated constitution content:

    • Replace every placeholder with concrete text (no bracketed tokens left except intentionally retained template slots that the project has chosen not to define yet—explicitly justify any left).
    • Preserve heading hierarchy and comments can be removed once replaced unless they still add clarifying guidance.
    • Ensure each Principle section: succinct name line, paragraph (or bullet list) capturing non‑negotiable rules, explicit rationale if not obvious.
    • Ensure Governance section lists amendment procedure, versioning policy, and compliance review expectations.

Read the full file on GitHub · 87 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. 4d ago First seen · 87 lines · 27 tokens per session scan A 759dc367124e

Subscribe to this mod's changes

speckit-constitution is a skill published in the GitHub repository traverse-framework/traverse (93 stars, last pushed 4d ago), licensed Apache-2.0. It adds 27 tokens to every session and 1,136 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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