constitution

constitution is a command for coding agents from mrvladd-d/memobank. It costs 12 tokens per session (1,536 once invoked), scanned A, original, MIT.

A guided interview and project document that records the principles, autonomy rules, and non-negotiable decisions governing a software project.

In plain words
What is it for?
Use it after initial analysis and a Product Brief to capture project principles and agent boundaries, while noting when this step is skipped.
Why use it?
It gives later product and engineering work a shared set of rules before detailed requirements are written.

Command

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 commands/mrvladd-d/memobank/constitution
Clone the repo
git clone --depth 1 https://github.com/mrvladd-d/memobank

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/mrvladd-d/memobank/constitution.svg)](https://agentmods.dev/commands/mrvladd-d/memobank/constitution)
Your own site
<a href="https://agentmods.dev/commands/mrvladd-d/memobank/constitution"><img src="https://agentmods.dev/badge/commands/mrvladd-d/memobank/constitution.svg" alt="Measured on agentmods" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,536 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 $0.00012 $0.01536
Opus 5 $0.00006 $0.00768
Sonnet 5 $0.00002 $0.00307
Haiku 4.5 $0.00001 $0.00154

Measured 3d ago against content hash 860b97bdafe5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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.

skills/_shared/references/commands/constitution.md · 147 lines

How it starts

The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/constitution — Project Constitution

The Constitution captures project governing principles, agent autonomy rules, and non-negotiables before /write-prd when possible. It does not replace Product Brief, PRD, mbb/index.md, spec-index.md, invariants.md, contracts, states, testing docs, workflow policies, or the tier policy.

0) Scope and route

Use /constitution in the normal manual greenfield flow after /analysis//brief and before /write-prd:

/analysis -> /brief -> /constitution -> /write-prd -> /spec-init -> /prd -> /spec-design -> /spec-improve FT-<NNN> -> /prd-to-tasks FT-<NNN>

If the user explicitly skips this step, do not block the flow. Leave the Constitution at project_principles: framework-default or set project_principles: skipped, record the skip in output, and recommend revisiting /constitution later.

Do not add Spec Kit hooks, command aliases, migration machinery, governance engines, or new hard-blocker semantics in /write-prd.

1) Load context

Read, when present:

  • .memory-bank/constitution.md, if it exists
  • .memory-bank/analysis/product-brief.md
  • latest relevant .memory-bank/analysis/brainstorming/BR-*.md
  • .memory-bank/mbb/index.md
  • .memory-bank/spec-index.md
  • .memory-bank/invariants.md, if it exists
  • .memory-bank/workflows/*, especially tier policy if present
  • AGENTS.md
  • user-provided context in $ARGUMENTS

If .memory-bank/constitution.md is missing, create it from the current framework skeleton/template before amending it.

Minimum skeleton requirements:

  • frontmatter: description, status: active, version: 1, project_principles: framework-default, ratified, last_updated
  • title: # Project Constitution
  • short sections for Purpose, Core Principles, and Governance
  • no project-specific domain principles unless grounded in the loaded context or user instruction
  • no contradiction with the current tier: T0|T1|T2|T3 model

Read the full file on GitHub · 147 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. 3d ago First seen · 147 lines · 12 tokens per session scan A 860b97bdafe5

Subscribe to this mod's changes

constitution is a command published in the GitHub repository mrvladd-d/memobank (55 stars, last pushed 3mo ago), licensed MIT. It adds 12 tokens to every session and 1,536 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.