01 / ProtectionAEGIS
Policy and protection. Decides whether intervention is permitted and keeps the session safe.
Open-source cognitive control · OpenCode · TypeSafe JEV
Wisdom at runtime.
ATHENA turns agent behavior into observable state, detects unproductive loops and issues a single, evidence-backed change of strategy.
Operational wisdom
More effort is not always progress.
Most agent runtimes can act. Few can recognize when action has collapsed into repetition. ATHENA adds the missing judgment layer: observe, evaluate, protect and replan.
System architecture
Four forces. One decision.
ATHENA is not another model. It is a control layer around the model: a small system of specialized modules that converts runtime signals into deliberate intervention.
01 / Protection
02 / CalibrationMETIS
Signal calibration. Converts noisy events into confidence about stagnation, risk and progress.
03 / OutcomeNIKE
Outcome judgment. Distinguishes useful movement from activity that only looks productive.
04 / StrategyREPLAN
One-shot strategy change. Queues a new direction without impersonating the user or looping itself.
Repository-backed reference
Documentation
Installation, architecture, policy, Tool Router, OpenCode integration and security — aligned with the current ATHENA repository.
Press / to searchGuard and outcome
Judgment needs boundaries.
AEGIS prevents unsafe intervention. NIKE verifies whether the new strategy actually produces movement. Protection and outcome stay separate by design.
AEGIS
The policy boundary. It turns a detection into an allowed, blocked or deferred action while preserving session invariants.
NIKE
The outcome judge. It measures whether the agent changed direction and whether that direction created useful progress.
OpenCode integration
Observe without becoming the user.
The adapter listens to runtime context, stores state per session and queues one controlled replan. It never injects a synthetic user message.
Read adapter docsATHENA / OpenCode v2context hook
14:02:11 hook.context received 14:02:11 session.isolated = true 14:02:12 world_state.progress_delta = 0.03 14:02:12 world_state.repeat_ratio = 0.78 METIS confidence 0.91 AEGIS policy ALLOW_REPLAN JEV verdict LOOP_DETECTED REPLAN queued true strategy retry → inspect_source ✓ context preserved ✓ one-shot guard armed ✓ synthetic user disabled