Phase 1 data model: 19 unit tests passing. The 5 enums + 9
supporting dataclasses + AggregateProfile central artifact are
all in place. Phase 1 checkpoint at ef207cf6.
metadata.json: standard track metadata (15 fields per the
live_gui_test_fixes_20260618 precedent; includes scope,
depends_on, blocks, out_of_scope, tolerated_at_run_time,
test_summary, verification_criteria, 10 risks).
state.toml: initial state (status=active, current_phase=0;
14 phases pending; 19 verification flags all false).
TIER2_STARTUP.md: the per-track readme for the Tier 2 agent.
Track-specific supplement to conductor/tier2/agents/tier2-autonomous.md.
Covers: what to load (plan_v2.md first, spec_v2.md second;
do NOT load v1 spec/plan), hard bans (3-layer), conventions,
TDD protocol, per-task commit protocol, pre-delegation
checkpoint, failcount contract, 8 known gotchas, verification
protocol, end-of-track handoff, out-of-scope restatement.
EXPLICITLY NOTES:
- any_type_componentization_20260621 + phase2_4_5_call_site_completion_20260621
are NOT on master (merged f914b2bc, reverted 751b94d4).
v2 audit is tolerant of their absence.
- The 3 candidate aggregates (ToolSpec, ChatMessage,
ProviderHistory) are forward-compat placeholders with
is_candidate: True. The integration tests verify the
placeholder format (synthesize_aggregate_profile() in
Phase 9 Task 9.2 has the template hard-coded).
- The 1-line extension to scripts/audit_optional_in_3_files.py
is the audit gate; skipping Phase 12 Task 12.2 leaves the
new file uncovered by the Optional[T] ban.
Total v2 artifacts (committed):
- spec_v2.md (460 lines)
- plan_v2.md (5006 lines)
- metadata.json
- state.toml
- TIER2_STARTUP.md
Re-scopes the audit from 'expensive operations per action' (v1) to
'data pipelines per aggregate' (v2). The v1 framing was correct
2026-06-07 (the 4 foundational tracks were future) but is now
stale; v2 also cross-validates the data_structure_strengthening
+ data_oriented_error_handling deductions directly.
10 in-scope aggregates (Metadata, FileItem, FileItems,
CommsLogEntry, CommsLog, HistoryMessage, History, ToolDefinition,
ToolCall, Result[T]) + 3 candidate aggregates (ToolSpec,
ChatMessage, ProviderHistory; forward-compat placeholders for
any_type_componentization_20260621 which is NOT on master).
4 static analyses: PCG (3 AST passes), MemoryDim classifier,
APD (5 access patterns), CFE (7 frequencies). 11 public
functions, all return Result[T] per error_handling.md hard rule.
Decomposition-cost heuristic per aggregate answers: 'should
this data be componentize further (split) or unify further
(wider fat structs)?' 4 directions: componentize, unify, hold,
insufficient_data. 10-phase TDD plan, 69 tests total.
Consumes JSON from 6 existing audit scripts (cross-validates
data_structure_strengthening + data_oriented_error_handling).
Out-of-scope: runtime profiling (deferred to
pipeline_runtime_profiling_20260607), MMA worker spawn (cold).
v1 spec.md + plan.md preserved unchanged.
Updates:
- conductor/tracks.md: entry #27 marked SHIPPED 2026-06-21; BLOCKER
removed for code_path_audit_20260607 (broadcast() TypeError fixed)
- state.toml: status=completed, current_phase=6, all 4 phases marked
completed with checkpoint SHAs, all verification booleans true
NOT shipped (per user instruction):
- The git mv to conductor/tracks/archive/ is the USER's responsibility
- Track directory stays at conductor/tracks/phase2_4_5_call_site_completion_20260621/
- tier2/any_type_componentization_20260621 branch NOT merged (reconnaissance framing)
Updates:
- conductor/tracks.md: entry #27 marked SHIPPED 2026-06-21; BLOCKER
removed for code_path_audit_20260607 (broadcast() TypeError fixed)
- state.toml: status=completed, current_phase=6, all 4 phases marked
completed with checkpoint SHAs, all verification booleans true
NOT shipped (per user instruction):
- The git mv to conductor/tracks/archive/ is the USER's responsibility
- Track directory stays at conductor/tracks/phase2_4_5_call_site_completion_20260621/
- tier2/any_type_componentization_20260621 branch NOT merged (reconnaissance framing)
The follow-up track now includes Phase 6e: Tier 2 produces the authoritative
Phase 3 cost analysis as part of the follow-up work. Tier 2 is in
src/ai_client.py doing Phase 6b/6d anyway; they have full context to produce
the refined cost hypothesis that Tier 1's draft at PHASE3_HYPOTHETICAL_PROMOTION.md
could not (Tier 1 worked without the 6b/6d ground-truth context).
Tier 1's draft STAYS as the hypothesis doc. Tier 2's PHASE3_TIER2_ANALYSIS.md
is the refined version (per-sender cost summary + hidden call sites table
+ recommendations for the future Phase 3 track + cross-reference to Tier 1
explicit).
Phase 6e tasks (5 total, ~2 commits):
- t6e_1: Profile the 6 senders (codepath catalog + hidden cross-refs)
- t6e_2: Qualitative cost estimation per sender
- t6e_3: Identify hot iteration sites needing 'with h.lock:' pattern
- t6e_4: Author PHASE3_TIER2_ANALYSIS.md
- t6e_5: Phase 6e checkpoint commit + git note
Total estimated commits: 16 -> 18 (still within Tier 2 1-4 hour budget).
Files updated:
- conductor/tracks/phase2_4_5_call_site_completion_20260621/spec.md (+50 lines)
- conductor/tracks/phase2_4_5_call_site_completion_20260621/plan.md (+146 lines)
- conductor/tracks/phase2_4_5_call_site_completion_20260621/metadata.json (+13 lines)
- conductor/tracks/phase2_4_5_call_site_completion_20260621/state.toml (+9 lines)
- conductor/tracks.md (track 27 entry expanded with Phase 6e details)
ed