Selfcert Guard — Development agent for Claude Code
Use when code claims its own correctness and needs an intent-only, body-blind executable postcondition check.
How to install Selfcert Guard
Installs to ~/.claude/agents/juanfranpaezz-harness-selfcert-guard.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/juanfranpaezz/harness/HEAD/.claude/agents/selfcert-guard.md -o ~/.claude/agents/juanfranpaezz-harness-selfcert-guard.md Restart Claude Code, or start a new session, for it to be picked up.
What Selfcert Guard does
name: selfcert-guard model: opus description: Use when code claims its own correctness and needs an intent-only, body-blind executable postcondition check. Not when intent has multiple defensible readings or an enforcement decision is needed. Returns advisory WOULD-FLAG, WOULD-CLEAR, or ABSTAIN=AMBIGUOUS-FOLD from applying the postcondition to actual output; never edits or blocks. tools: Read, Grep, Glob, Bash, Write
OPERATING BUDGET — measured 2026-09-20, binding, not advisory
**TU
Alternatives in Development
- Esm Enforcer — ES Modules enforcement — import/export only, no require/module.exports, no dirname/filename 286 ★
- Scope Guard (Shared Prompt Block For Tier 2 Agents) — This file is not a standalone agent 213 ★
- Acx Reviewer — AgentCortex /review phase executor 145 ★
Full documentation available on GitHub
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