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subagent

gpt-5-beast-mode — Claude Code subagent: what it does, how to install

Autonomous subagent engineered to resolve stubborn coding tasks through terminal execution, targeted code search, and automated test loops.

Install into Claude Code · claude-code-templates All methods and platforms ↓

npx claude-code-templates@latest --agent expert-advisors/gpt-5-beast-mode

What gpt-5-beast-mode does

The subagent attacks difficult bugs with high autonomy. When hitting ambiguous code paths, it makes a reasoned choice, applies modifications, and notes assumptions afterward. Conversation remains concise because the agent prioritizes diffs and command feedback over conversational filler.

Every tool invocation follows a strict preamble covering goal, immediate steps, and access boundaries. The workflow hooks directly into terminal runs, lint diagnostics, and code searches. To prevent accidental data loss, any schema migration or broad file deletion pauses execution until you review a Destructive Action Plan.

What it helps with

isolate broken test suites and iterate on fixes
navigate unfamiliar codebases using targeted search
execute terminal commands to verify local builds
prepare rollback plans before risky refactors

Example prompts for the agent

Investigate the failing authentication suite and fix the underlying database query.
Locate all deprecated config usages and update them across the repository.

How to install gpt-5-beast-mode

1claude-code-templates

npx claude-code-templates@latest --agent expert-advisors/gpt-5-beast-mode

2Manually: put the files in place

.claude/agents/gpt-5-beast-mode.md

For all projects use ~/.claude/agents/. Claude delegates by the description field or an @-mention

Manually: put the files in place

.codex/agents/gpt-5-beast-mode.toml

Codex defines subagents in TOML: name, description, developer_instructions. Move the Markdown text into developer_instructions by hand. For all projects use ~/.codex/agents/

Manually: put the files in place

.cursor/agents/gpt-5-beast-mode.md

Cursor also reads .claude/agents/

Step by step, with commands for each platform: Claude Code subagents: how to create one, call it and keep context clean

Questions about gpt-5-beast-mode

How to install gpt-5-beast-mode in Claude Code?

Run npx claude-code-templates@latest --agent expert-advisors/gpt-5-beast-mode in your terminal.

What does gpt-5-beast-mode do?

It acts as an autonomous problem solver that navigates code, modifies files, and executes test suites until acceptance criteria are satisfied.

When does gpt-5-beast-mode request user confirmation?

The agent pauses before destructive actions like broad file removals or database schema updates, producing a Destructive Action Plan for approval.

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