constitution

constitution is a command for Claude Code from MartyBonacci/specswarm. It costs 21 tokens per session (1,466 once invoked), scanned A, a copy of speckit.constitution, MIT.

A command for creating or updating a project's written set of development principles. It fills a constitution template and updates related templates to match.

In plain words
What is it for?
Use it to establish project principles from user input or existing project context, replace template placeholders, and propagate changes across related SpecSwarm files.
Why use it?
It keeps the project's rules in one clear document and prevents dependent files from becoming inconsistent after an amendment.

Command for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: mentions Claude Code.

Part of the ss plugin — 10 skills, 34 commands, 6 agents, 4 hooks shipped together

Good fit Use it to establish project principles from user input or existing project context, replace template placeholders, and propagate changes across related SpecSwarm files.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/martybonacci/specswarm/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.

Clone the repo
git clone --depth 1 https://github.com/MartyBonacci/specswarm

Made for: Claude Code.

Or install ss, the plugin that ships this one along with the rest of its 10 skills, 34 commands, 6 agents, 4 hooks.

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 constitution

README.md
[![agentmods](https://agentmods.dev/badge/commands/martybonacci/specswarm/constitution/github.svg)](https://agentmods.dev/commands/martybonacci/specswarm/constitution)
Your own site
<a href="https://agentmods.dev/commands/martybonacci/specswarm/constitution"><img src="https://agentmods.dev/badge/commands/martybonacci/specswarm/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 constitution

Your own site · 80×15
<a href="https://agentmods.dev/commands/martybonacci/specswarm/constitution"><img src="https://agentmods.dev/badge/commands/martybonacci/specswarm/constitution.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,466 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 88% 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 $0.00021 $0.01466
Opus 5.5 $0.00008 $0.00586
Sonnet 5.5 $0.00004 $0.00293
Haiku 4.5 $0.00002 $0.00147

Measured 1mo ago against content hash a4b2fb3495ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 1mo 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

88% identical to speckit.constitution — 66 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.

plugins/ss/commands/constitution.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

$ARGUMENTS

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

Outline

You are updating the project constitution at .specswarm/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.

Follow this execution flow:

  1. Load the existing constitution template at .specswarm/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:

    • First, read README.md for project context (if it exists):
      • Use the Read tool to read README.md
      • Extract project name from first heading (e.g., # My Project → "My Project")
      • Extract project description from first paragraph after title
      • Look for sections like "Goals", "Vision", "Purpose", "Standards", "Conventions" for principle guidance
      • If README.md doesn't exist or lacks content, skip this step
    • If user input (conversation) supplies a value, use it (takes priority over README).
    • Otherwise infer from README context (gathered above) or 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.
  4. Consistency propagation checklist (convert prior checklist into active validations):

    • Read /templates/plan-template.md and ensure any "Constitution Check" or rules align with updated principles.
    • Read /templates/spec-template.md for scope/requirements alignment—update if constitution adds/removes mandatory sections or constraints.
    • Read /templates/tasks-template.md and ensure task categorization reflects new or removed principle-driven task types (e.g., observability, versioning, testing discipline).
    • Read each command file in /templates/commands/*.md (including this one) to verify no outdated references (agent-specific names like CLAUDE only) remain when generic guidance is required.
    • Read any runtime guidance docs (e.g., docs/quickstart.md, or agent-specific guidance files if present). Update references to principles changed. Note: README.md is already read in Step 2.
  5. Produce a Sync Impact Report (prepend as an HTML comment at top of the constitution file after update):

    • Version change: old → new
    • List of modified principles (old title → new title if renamed)
    • Added sections
    • Removed sections
    • Templates requiring updates (✅ updated / ⚠ pending) with file paths
    • Follow-up TODOs if any placeholders intentionally deferred.

Read the full file on GitHub · 109 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. 1mo ago First seen · 109 lines · 21 tokens per session scan A a4b2fb3495ce

Subscribe to this mod's changes

constitution is a command published in the GitHub repository MartyBonacci/specswarm (66 stars, last pushed 2mo ago), licensed MIT. It adds 21 tokens to every session and 1,466 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to speckit.constitution, differing in 66 lines, and is treated as a copy.