Technical guides

Search the problem.Inspect the mechanism.

Evergreen, evidence-first guides for developers who see coding agents repeat reads, searches, checks or tool calls without observable progress.

AI agent no-progress loopsWhat no-progress means, how to detect it, and why retries are not automatically waste. Repeated tool callsDistinguish useful verification from same-state repetition with no new evidence. MARGINAL for CodexNative plugin, Shadow Mode by default, narrow evidence-earned Tool Enforcement. MARGINAL for Claude CodeObserve-only hooks, engine-declared outcomes, local Decision Ledger, no blocking.

Bring us an agent that gets stuck.

Real traces and falsifying examples are more useful than generic feature requests.

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Research & Engineering

Go beyond the concise guides with long-form articles on no-progress evidence and evidence-bound agent governance.

Read the engineering blog →