# Siege

Work on one hard mathematics problem in rounds: each round a judge writes a few...

- Repository: https://github.com/anthropics/claude-plugins-official (45706 stars)
- Category: Engineering
- License: Apache-2.0
- Last updated: 2026-11-01
- Runs scripts: yes, review before use

## Install

Claude Code: `npx skills add anthropics/claude-plugins-official --skill siege -g -a claude-code -y`
Codex: `npx skills add anthropics/claude-plugins-official --skill siege -g -a codex -y`
Cursor: `npx skills add anthropics/claude-plugins-official --skill siege -g -a cursor -y`
Gemini CLI: `npx skills add anthropics/claude-plugins-official --skill siege -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add anthropics/claude-plugins-official`

## Description

Work on one hard mathematics problem in rounds: each round a judge writes a few self-contained questions, independent workers answer them, and the judge keeps a ledger of what is proved, refuted and open, until the judge concludes or the rounds run out, and then a proof.md says plainly what is and is not proved. A run takes hours and dozens of worker runs. Usage: /math-proof:siege [NAME=value settings] <the problem, stated in full, or the path of a file holding it>.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# math-proof: siege

## The approach
The skill works on one problem in at most MAX_ROUNDS rounds. Each round a judge writes a few self-contained
questions, at most WAVE of them before round ESC_ROUND. The steps below call them queries. Each question goes
to a fresh worker that sees only that question and the problem statement. The judge reads the answers,
rewrites the running summary, and adds to a ledger of claims marked PROVED, REFUTED or OPEN. One claim is the
goal, set in round 1; the judge may set a new goal at a later round, and in particular may raise it to a more
significant statement once it is proved (the proved goal then stays in the ledger as the fallback result, to
which the judge returns if two waves bring the raised goal no nearer; when the goal is raised you tell the user and
copy the proved result to DIR/result-so-far.md). When an answer holds a complete written proof or disproof of the goal, two more workers check that exact text
line by line. Once both pass, the judge concludes or raises the goal. Before round MIN_ROUNDS, that is the only
way to conclude. From round ESC_ROUND on, if no complete proof or disproof is in hand, a round may
hold up to WAVE_DEEP questions for higher-effort workers. All but at most two of them aim at the one statement
still missing from the proof. After the rounds end, the judge writes a self-contained proof.md, a worker
checks it, and the judge finalizes it. Unless the goal the run ends on was both proved and checked twice during
the rounds, there are also extra revision passes and a last wave of full proof attempts before finalizing.
proof.md has a Status section that says plainly what is and is not proved. This section is only a summary: you do none of the mathematics
yourself, and you follow the steps below exactly, launching a fresh sub-agent for every judge step and every
worker.

The rest: https://github.com/anthropics/claude-plugins-official/blob/HEAD/plugins/math-proof/skills/siege/SKILL.md