refinement of upcoming tracks

conductor/tracks/on_demand_def_lookup_20260306/spec.md

@@ -1,21 +1,33 @@
 # Track Specification: On-Demand Definition Lookup (on_demand_def_lookup_20260306)
 
 ## Overview
-Add ability for agent to request specific class/function definitions during discussion. User @mentions symbol for inline definition, or AI auto-fetches on unknown symbols.
+Add ability for agent to request specific class/function definitions during discussion. Parse @symbol syntax to trigger lookup.
 
-## Architectural Constraints
-- **Fast Lookup**: Definition lookup MUST complete in <100ms.
-- **Accurate Parsing**: Symbol parsing MUST handle edge cases.
+## Current State Audit
+
+### Already Implemented
+- **`mcp_client.py_get_definition()`**: Returns full definition source
+- **`outline_tool.py`**: Code outlining
+
+### Gaps to Fill
+- No @symbol parsing in discussion input
+- No inline definition display
+- No click-to-source navigation
 
 ## Functional Requirements
-- **@Syntax**: Parse @symbol to trigger lookup.
-- **Inline Display**: Show definition inline in discussion.
-- **Auto-Fetch**: Option for AI to auto-fetch on unknown symbols.
-- **Navigation**: Click definition to jump to source.
+- Parse `@ClassName` or `@function_name` in input
+- Display definition inline in discussion
+- Click to jump to source file
+- Uses existing `py_get_definition()` tool
+
+## Key Integration Points
+| File | Purpose |
+|-----|---------|
+| `src/gui_2.py` | Input parsing, definition display |
+| `src/mcp_client.py` | `py_get_definition()` |
 
 ## Acceptance Criteria
-- [ ] @symbol triggers lookup.
-- [ ] Definition displays inline.
-- [ ] Auto-fetch option works.
-- [ ] Click navigation functional.
-- [ ] Uses existing py_get_definition.
+- [ ] @symbol triggers lookup
+- [ ] Definition displays inline
+- [ ] Click navigation functional
+- [ ] 1-space indentation