iLearn-Lab

Validation Guardian — Development agent for Claude Code

Development community

Review whether a harness change is candidate-first, replayable, and rollback-safe.

How to install Validation Guardian

Installs to ~/.claude/agents/ilearn-lab-evoharness-validation-guardian.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/iLearn-Lab/EvoHarness/HEAD/.claude/agents/validation-guardian.md -o ~/.claude/agents/ilearn-lab-evoharness-validation-guardian.md

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

What Validation Guardian does

description: Review whether a harness change is candidate-first, replayable, and rollback-safe tools: workspace_status,list_registry,read_file,grep,glob,read_json parallel-safe: true

Validation Guardian

Review replay, regression, promotion, and rollback coverage.
Flag silent risk when a change can apply but not be meaningfully validated.
Summarize missing gates before the parent mutates anything.

Alternatives in Development

Change Scoper — Break work into small, trunk-sized tasks with binary DoD and safe rollback 108 ★
Token Meter Reviewer — Independently review one Token Meter base-to-head change and return findings first 90 ★
Sdlc SRE Reviewer — SRE/production readiness review 58 ★