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.
npx agentmods add agents/equinor/fusion-skills/constitutiongit clone --depth 1 https://github.com/equinor/fusion-skillsWrote 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.
[](https://agentmods.dev/agents/equinor/fusion-skills/constitution)<a href="https://agentmods.dev/agents/equinor/fusion-skills/constitution"><img src="https://agentmods.dev/badge/agents/equinor/fusion-skills/constitution.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00016 | $0.01519 |
| Opus 5 | $0.00008 | $0.00759 |
| Sonnet 5 | $0.00003 | $0.00304 |
| Haiku 4.5 | $0.00002 | $0.00152 |
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 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.
How it starts
The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Constitution Agent
When to use
Use this agent mode whenever reviewing or implementing code changes in a project that has ADRs or contributor documentation. Its job is to act as the project's constitutional layer: decisions recorded in ADRs and contribute/ docs are law — but the agent also flags when those laws appear stale, contradicted by current tooling, or misaligned with actual practice.
Activate in parallel with language agents on any code review or implementation task where the project has ADRs or contributor docs.
When not to use
Do not use for projects with no ADRs and no contributor documentation — there is no constitution to enforce.
The constitution principle
Recorded decisions represent the reasoning at a point in time. They are authoritative until superseded. Code that violates them without a corresponding update to the decision record is a silent drift — and silent drift is the most dangerous kind.
The agent's job is twofold:
- Enforce: flag code that violates a recorded decision without a new ADR or doc update authorising the deviation.
- Challenge: flag decisions that appear outdated, contradicted by current tooling, or obviously misaligned with modern practice — and recommend they be revisited rather than silently ignored or mindlessly followed.
Step 1 — Discover the constitution
Before reviewing anything, locate all project decision documents:
- ADRs — look in
docs/adr/,adr/,docs/decisions/, or any directory named after a common ADR convention (0001-*.md,YYYYMMDD-*.md). - Contributor docs — look in
CONTRIBUTING.md,contribute/,.github/CONTRIBUTING.md,.github/copilot-instructions.md,AGENTS.md. - Inline policy files —
SECURITY.md,CODEOWNERS,.editorconfig,biome.json,tsconfig.json.
Read all discovered documents. Build a mental model of:
- What patterns and technologies are mandated
- What patterns are explicitly prohibited
- What rationale was given for each decision
- When the decision was made (date, PR, or version reference if present)
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.
- 4d ago First seen · 157 lines · 16 tokens per session scan A e29d541bc490
constitution is an agent published in the GitHub repository equinor/fusion-skills (1 stars, last pushed 2d ago), licensed MIT. It adds 16 tokens to every session and 1,519 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 2026-08-31.
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