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Hollow

v5.5.1 Feature

This release adds 5 notable features for engineering teams evaluating rollout.

✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Summary

AI summary

Artifact validation now rejects markdown‑written .py files as goals, fixing silent success.

Full changelog

What changed

Suffering system hardening

  • Stressor dedup now case-insensitive (fixed runaway accumulation bug from case variants)
  • MAX_STRESSORS = 5 hard cap
  • force_reset() breaks crisis loops after 3 consecutive cycles
  • Agents at cumulative load ≥ 0.90 no longer block goal execution — they work through it

Goal continuity (existence prompt)

  • When a goal completes, outcome is written to last_outcome.txt and injected into the next existence prompt as WHAT YOUR LAST GOAL PRODUCED
  • Recent memory_set keys surfaced in existence prompt so agents know what they've written
  • Recent goal history now shows [DONE] / [FAILED] / [ABANDONED] tags

Artifact validation

  • .py files now validated with compile() — markdown written to a .py file no longer counts as a completed goal
  • synthesize_capability returns ok: False on exec test failure instead of silently succeeding

Capability blacklisting

  • Cross-cycle failure tracking: tools that fail once per goal run (never hit the within-run threshold) now accumulate in broken_tools.json and get blacklisted at 5 total failures
  • Follow-on goal dedup is now fuzzy — >70% word overlap with a recent completed goal is rejected

Launcher

Double-click HollowAgentOS.bat. Requires Docker Desktop and Ollama with qwen3.5:9b.

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Related context

Earlier breaking changes

  • v5.7.32 Web dashboard removed; operator panel is canonical UI

Beta — feedback welcome: [email protected]