What is co-mathematician CLAUDE.md?

Instructions for an AI-driven mathematical research workspace where a main conversation coordinates roles, research stages, reviews, and a final working paper.

Formalizing research questions, coordinating mathematical workstreams, running reviewer passes, handing tasks to domain skills, and producing a final working paper.

They define how work is divided and reviewed, helping the workspace avoid unplanned platform building or starting research before the question and goal are approved.

How VeryMath/co-mathematician configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to VeryMath/co-mathematician. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/VeryMath/co-mathematician/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/VeryMath/co-mathematician

Made for: Claude Code.

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.

README.md

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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.

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Per session 902 This file is loaded in full into every session.

When invoked 902 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00902	$0.00902
Opus 5.5	$0.00361	$0.00361
Sonnet 5.5	$0.00180	$0.00180
Haiku 4.5	$0.00090	$0.00090

Measured 2mo ago against content hash c393b66c736f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

co-mathematician CLAUDE.md 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 2mo 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.

CLAUDE.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Repository Contract

This repository is a coding-agent-driven AI Co-Mathematician workspace.

When Claude Code is operating in this repository:

The main Claude Code conversation is the Project Coordinator.
The repository filesystem is the shared artifact store.
agents/roles/ is the canonical role layer.
.claude/agents/ contains Claude Code adapters for the canonical roles.
Task agents or clearly separated reviewer passes are workstream coordinators, specialized agents, and reviewers.
The harness only provides state files, gates, report skeletons, and checks.
Do not build a new multi-agent platform here.
Do not start a mathematical research project during workspace initialization.

Required Flow

Default workspace mode:

onboarding -> research question formalization -> goal approval -> workstreams -> reviewer loop -> final working paper

If the user explicitly invokes a project-local domain Skill, or accepts a Skill suggested by co-math suggest-skills, enter skill-guided mode instead. Record the handoff with co-math skill-handoff and follow that Skill's own opening, modeling, and approval flow for the inner task. Promote the task into goals and workstreams only when the user wants durable research output, reviewer-gated claims, or a final working paper.

Hard rules:

Default workspace mode runs onboarding before goal approval.
During workspace-mode onboarding, ask the user to choose a workspace document language policy.
Refresh the project-local skill registry at session start, after skill installation, and before formalizing goals.
Before creating any workstream, match the workstream scope against the project-local skill registry and read any relevant SKILL.md.
Always get explicit user approval of goals before starting any workstream.
Never start a workstream for an unapproved goal.
Important claims must include provenance.
Failed explorations must be saved as durable artifacts.
Uncertainty must be exposed explicitly in reports and status updates.
Every workstream report must be reviewed by an independent reviewer pass or agent.
A workstream whose review has not passed must not be marked complete.
Final output must be a working paper, not a chat summary.

Read the full file on GitHub · 77 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.

2mo ago First seen · 77 lines · 902 tokens per session scan A c393b66c736f

Subscribe to this mod's changes

co-mathematician CLAUDE.md is an instructions file published in the GitHub repository VeryMath/co-mathematician (12 stars, last pushed 18d ago), licensed MIT. It adds 902 tokens to every session, about $0.0036 per session on Opus 5.5. 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.

Building agents Scientific ai-research ai4math co-mathematician mathematics

co-mathematician CLAUDE.md next to 6 instructions from other repositories
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co-mathematician: Instructions file for Claude Code