eternalwaitt

Etrnl Adversary — Development agent for Claude Code

Development community

Use this agent when ETRNL needs a read-only adversarial challenge of a plan, diff, or completion claim.

How to install Etrnl Adversary

Installs to ~/.claude/agents/eternalwaitt-eternal-stack-etrnl-adversary.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/eternalwaitt/eternal-stack/HEAD/agents/etrnl-adversary.md -o ~/.claude/agents/eternalwaitt-eternal-stack-etrnl-adversary.md

Restart Claude Code, or start a new session, for it to be picked up.

What Etrnl Adversary does

name: etrnl-adversary description: Use this agent when ETRNL needs a read-only adversarial challenge of a plan, diff, or completion claim. Examples:

Context: Autoplan has produced a plan and the parent needs a Codex-style challenge before execution. user: "Stress-test this plan before we run it." assistant: "Launch etrnl-adversary with the plan path, review dimensions, and no-write instruction." The task is adversarial review, not implementation.

Alternatives in Development

Tech Stack Researcher — Use this agent when the user is planning new features or functionality and needs guidance on technology choice 1.5k ★
Backend Convention Checker — Use this agent when a plan file's lint verification stage needs to be executed — specifically to check recentl 109 ★
Completion Gate — Lie detector for agent claims — validates every completion claim has actual evidence 85 ★