uncrash

Ticket 018: Native Rust acceleration for agent log panic scanning and session diagnostics

• ID: ticket-018
• Owner: Antigravity
• Status: IN_PROGRESS
• Workflow state: EDIT
• Created: 2026-10-11

Goal and scope

Accelerate agent storage health inspections and panic diagnostics using native Rust execution in the worker binary while preserving fail-safe Python fallbacks. Specifically:

1. Extend src/uncrash/snapshot.rs with high-throughput --scan-panics <dir> [budget] mode.
2. Integrate native panic scanning into src/uncrash/diagnostics.py with safe binary discovery and automatic fallback.
3. Add worker precompilation helpers to eliminate runtime rustc compiler invocation latency during diagnostics.
4. Comprehensive test coverage ensuring bit-for-bit parity between native Rust and Python scanner results.

Acceptance criteria

• AC-01: Native worker supports --scan-panics sub-command with budget limits and symlink protections.
• AC-02: scan_agent_log_panics transparently attempts native acceleration and falls back to pure Python if unavailable.
• AC-03: Precompilation caching prevents redundant runtime rustc executions.
• AC-04: Test suite verifies parity, edge cases, and fallback behavior without shortcuts or pytest.skip.

Tracking boundary

This directory contains the reviewed intent and implementation record.

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