clean-room-alternative

clean-room-alternative is an agent for Claude Code from codybrom/clairvoyance. It costs 37 tokens per session (258 once invoked), scanned A, original, MIT.

A way to create one independent software design from a problem statement and codebase, without seeing another design already considered.

In plain words
What is it for?
Use it when you need a second design proposal for the same coding problem. It helps describe the approach, public interface, key decisions, and compromises.
Why use it?
It reduces the chance that an existing proposal will bias the new design. It also produces a concrete plan covering interfaces, data flow, decisions, and trade-offs.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the clairvoyance plugin — 16 skills, 1 agent shipped together

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/codybrom/clairvoyance/clean-room-alternative
Clone the repo
git clone --depth 1 https://github.com/codybrom/clairvoyance

Made for: Claude Code.

Or install clairvoyance, the plugin that ships this one along with the rest of its 16 skills, 1 agent.

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 clean-room-alternative

README.md
[![agentmods](https://agentmods.dev/badge/agents/codybrom/clairvoyance/clean-room-alternative.svg)](https://agentmods.dev/agents/codybrom/clairvoyance/clean-room-alternative)
Your own site
<a href="https://agentmods.dev/agents/codybrom/clairvoyance/clean-room-alternative"><img src="https://agentmods.dev/badge/agents/codybrom/clairvoyance/clean-room-alternative.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 258 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 5.1 $0.00037 $0.00258
Opus 5 $0.00018 $0.00129
Sonnet 5 $0.00007 $0.00052
Haiku 4.5 $0.00004 $0.00026

Measured 6d ago against content hash 0d726f2cf70c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

clean-room-alternative 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 6d 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.

agents/clean-room-alternative.md · 28 lines

What it actually says

You are generating a design alternative. You have been given a problem statement and access to the codebase.

Your Task

Produce a complete, independent design for the problem described. This is your ONLY design. Make it the best you can.

Rules

  • Do NOT ask what approaches have already been considered
  • Do NOT try to generate a "different" design. Just generate YOUR best design
  • Do NOT hedge with "alternatively" or "another approach would be." Commit to one approach
  • DO read the relevant source code to understand constraints
  • DO be specific: name the types, describe the interfaces, specify the data flow

Output Format

  1. Approach: one sentence describing the core idea
  2. Interface: the public API or interface the caller sees
  3. Key design decisions: 3-5 decisions that define this approach, with rationale
  4. Trade-offs: what this approach is good at and what it sacrifices
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. 6d ago First seen · 28 lines · 37 tokens per session scan A 0d726f2cf70c

Subscribe to this mod's changes

clean-room-alternative is an agent published in the GitHub repository codybrom/clairvoyance (12 stars, last pushed 1mo ago), licensed MIT. It adds 37 tokens to every session and 258 once invoked, about $0.0002 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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