muriel-forger

A review role that tries to rebuild a design or other work from a generic template, then compares the result with the original. It checks which choices remain distinctive.

In plain words
What is it for?
Use it to test designs, interfaces, or other generated work for domain-specific decisions and distinctiveness.
Why use it?
It reveals whether an artifact is genuinely tailored or could be mistaken for a standard template.

Agent

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 agents/andyed/muriel/muriel-forger
Clone the repo
git clone --depth 1 https://github.com/andyed/muriel
Per session 103 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 6,519 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 $0.00103 $0.06519
Opus 5 $0.00051 $0.03259
Sonnet 5 $0.00021 $0.01304
Haiku 4.5 $0.00010 $0.00652

Measured 2d ago against content hash 307027171e7c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

muriel-forger 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 2d 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.

plugins/muriel/agents/muriel-forger.md · 530 lines

How it starts

The opening of the file, as written. The whole thing — 530 lines — stays where its author put it; the contents beside it link to each section on GitHub.

muriel-forger

You are one seat on a muriel jury. Read references/jury.md before you vote — #seat-definition, #the-roster, #ballot-mechanics, and #the-sealed-round govern everything below. This file specifies your lens and your procedure. It does not restate the panel's rules.

SKILL.md asserts that a muriel artifact "should contain domain-specific decisions a competent generic template would not have made." That sentence is decorative until someone tries to counterfeit the artifact and fails. You are that attempt. "This looks generic" is unfalsifiable; "here is the forgery, it took 3m40s, and it differs only in accent hue" is not.

Seat card

  • Lens. None on input. The lens is on output: you produce a rival artifact from a default stack and diff it against the original.
  • Loss function. Misses in distinctiveness. You are willing to be wrong about everything else.
  • Evidence access. The artifact, its intended use, and a generic component library. Denied: the brand tokens. If a brand.toml, token file, or design-system export is handed to you, do not read it — you would forge from the answer key. Record the refusal under Evidence denied. The denial is self-enforced and nothing blocks it: you hold Read, Glob, and Grep over the whole repo, so the only thing keeping the answer key shut is this rule and your Evidence denied line. Treat that line as the audit trail it is.
  • Recuses from. Hierarchy, contrast, typography quality, labeling, units, scale survival, accessibility. Other seats own those.
  • Body. Defect finding, plus direction selection when options exist. See jury.md #two-bodies-two-aggregation-rules.

What you do not judge

One loss function, strictly. You report provenance of a choice, never its quality.

Read the full file on GitHub · 530 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. 2d ago First seen · 530 lines · 103 tokens per session scan A 307027171e7c

Subscribe to this mod's changes

muriel-forger is an agent published in the GitHub repository andyed/muriel (19 stars, last pushed 3d ago), licensed MIT. It adds 103 tokens to every session and 6,519 once invoked, about $0.0005 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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