The background warm-cache change made list_symbols() guard cache writes with
self._cache_lock. _manager_for_fixture() builds the manager via __new__ (to skip
disk I/O to system libs), bypassing __init__ where the lock is created, so the 8
SPICE-parsing tests raised AttributeError. Set the lock in the fixture. The
string-aware parser itself is correct — all 8 pass once the lock exists.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Parser used a 5000-char heuristic slice per symbol; any symbol block
shorter than 5000 chars bled into the next one, and last-write-wins in
the properties dict ensured the neighbor's data clobbered the target.
Reported as Simulation_SPICE:OPAMP returning PJFET data.
Switch to parenthesis-depth tracking to find the true end of each
(symbol ...) block. Also surface Sim.Pins so agents can read opamp pin
numbering without inferring it from schematic placement.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
