v0.9.3

What's New

🐛 Stagnation rule now tracks unique paths, not just tools (F6)

The loop detection rule's stagnation check used to count unique TOOL
names only. This blocked legitimate batch work — e.g. scaffolding 10
files where the agent only uses write+bash would trip the
stagnation block after 14 calls.

The check now tracks the distinct-paths ratio of recent calls. If
≥70% of calls touch distinct paths, the call is allowed (it's batch
progress, not a loop).

Behavior matrix

Pattern	Action
14 write() calls, 14 distinct files	✅ ALLOW (scaffolding)
14 write() calls, all to same file	❌ BLOCK (real stagnation)
10 calls, 8 unique paths + 2 repeats	✅ ALLOW (borderline batch)
10 calls, 3 unique paths	❌ BLOCK (genuine loop)

Path identity is extracted from path / file_path / cwd /
first arg — handles all common tool dialects.

🧪 5 new regression tests

• TestStagnationBatchWorkRefinement — covers the new distinct-paths logic
• test_scaffolding_many_distinct_files_allowed — F6 baseline regression
• test_repeated_path_stagnation_blocked — ensures real loops still fire
• test_mixed_some_repeats_allowed_at_threshold — borderline case
• test_path_extraction_supports_file_path_arg — alternate arg name
• test_call_history_does_not_leak_between_rules — isolation

🛠️ Integration test script

Added tests/integration-subagent-smoke.sh for end-to-end verification
spawning a real subagent through the proxy.

Full Changelog

v0.9.2...v0.9.3