Implementation Audit: Session Notes vs. Actual Code

Date: 2026-06-25 Scope: Verify every claim in session work logs against exact source code. Method: Read code, trace execution paths, run validation suite.

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Priority 1 – Baseline Queries (5 Queries)

Claim: Find tried before grep for CodebaseQuery

Verified? YES

• src/services/execution_engine.cpp:552-558: select_next_tool for CodebaseQuery calls extract_best_term → find <term> --impl first, before any grep.
• Line 571-575: grep is fallback only if find:done exists without find:results.

Claim: extract_best_term behavior for each query

“where is replay implemented” → “replay” Verified? YES

• extract_best_term (execution_engine.cpp:65-188): prefix "find " removed at line 86-93, suffix " implemented" removed at line 97-106. Remaining: "replay". Single word, returned as-is.
• Find handler (command_router.cpp:176-363): stem_lower.find("replay") matches replay_service → partial filename match (score +10).

“find cursor binary” → “cursor[ _-]?binary” Verified? YES (term extraction), NO (matching works)

• extract_best_term: prefix "find " removed → "cursor binary". Two-word group, no code-shaped words → reconstructed as "cursor[ _-]?binary" (line 179-184).
• This fails to match any file because the find handler treats [ _-]? as literal characters, not regex. stem_lower.find("cursor[ _-]?binary") will not match cursor_binary.

“where is CommandRouter implemented” → “CommandRouter” Verified? YES

• extract_best_term: prefix "where is " removed → "CommandRouter". TitleCase detected (line 168-170) → code word → returned as single token.
• Find handler: term_normalized splits CamelCase → "command_router". Exact match on command_router stem (line 233-235).

Claim: extract_best_term_plain() exists for space-joined multi-word terms

Verified? NO

• No function named extract_best_term_plain exists anywhere in the codebase.
• The single extract_best_term() always emits [ _-]? separators for multi-word groups (line 179-184).
• Multi-word queries like "cursor binary" produce regex-like strings that cannot match filenames.

Claim: Binary detection (build/bin/, /usr/local/bin/) in find handler

Verified? NO

• command_router.cpp:176-363: find handler does directory-lookup of all files under the repo root. No special-case detection of binary paths.
• No check for build/bin/, /usr/local/bin/, .o, .exe, or any compiled binary location.

Claim: Word-level matching in find handler (space-split, camelCase-split)

Verified? NO

• The find handler (command_router.cpp:226-248) compares stem_lower against term_lower using only == and .find(). No splitting by space or camelCase boundaries.
• The only term normalization is upper-to-lower + _ insertion (line 193-198), which handles CommandRouter → command_router but does not split multi-word terms.

Validation Suite: 28/28 validation, 32/32 benchmark passing

Verified? YES

• Validation runner (tests/validation_runner.cpp) output confirms 28/28 passing.
• Benchmark suite (scenarios/benchmark/benchmark_suite.json) output confirms 32/32 passing.
• Note: benchmark only checks outcome (Success/Failure), not tool sequence. Queries that changed from grep → read to find → read still pass because outcome is the same.

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Priority 2 – Timeline Events

Claim: Tool invocation emits section header + tool name

Verified? YES

• ui_manager.cpp:802-828 – show_tool_invocation calls show_progress_section(section_for_tool(tool)) (line 824) then → <tool> <args> (line 826-828).
• section_for_tool (line 781-791): maps tool → section name (e.g., find→”Locating files…”, grep→”Checking symbols…”).

Claim: Tool completion emits ✓ counts

Verified? YES

• ui_manager.cpp:831-928 – show_tool_output shows:
  • grep (line 857-867): ✓ N matches found
  • find (line 868-880): ✓ N candidates (selected_path)
  • read (line 881-898): ✓ last_file or ✓ N files
  • git (line 899-905): ✓ N commits found
  • gh (line 906-912): ✓ N lines

Claim: “Collecting evidence…” stage appears after tool loop

Verified? YES

• execution_engine.cpp:1165-1189 – After the main tool loop, shows "Collecting evidence..." section (line 1172), then ✓ N tool results, X grep, Y find, Z read (line 1184-1188).
• Runs for ALL goal types, including ArchitectureReview (called from execute() at line 981).

Claim: “Preparing answer…” stage shown before answer

Verified? YES (with caveats)

• command_router.cpp:658-659 – show_progress_section("Preparing answer...") shown before both direct answer (line 661-731) and AI chat (line 734-743).
• NOT shown for: ArchitectureReview (early return at line 447-453), InsufficientEvidence/Failure/UserRejected (early return at line 467-493).

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Priority 3 – Architecture Review Path

Claim: build_review_report is deterministic, no AI calls

Verified? YES

• execution_engine.cpp:841-975 – build_review_report is pure string building from tool history. No AIService, no LLM, no external calls.
• Checks for: dead AgentMode enum (line 871-898), MODE_ constants (line 901-930), test coverage gaps (line 941-963).
• Output format: ## title + Risk: value via append_finding.

Claim: ArchitectureReview returns directly without AI chat

Verified? YES

• command_router.cpp:447-453: If goal_type == ArchitectureReview, returns engine_result.summary directly, never reaches handle_ai_chat.
• No AIService invocation in the ArchitectureReview path.

Claim: Execution path uses grep/read only, no LLM

Verified? YES

• execution_engine.cpp:611-636 – select_next_tool for ArchitectureReview uses: discovery, git log, grep (AgentMode, MODE_, AuthProvider, provider_label, strategy_changes), read (session_state.h, metrics.h, execution_engine.cpp, validation_runner.cpp). No find, no AI.

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Priority 4 – Work Log Paths

Claim: Collect + Prepare stages shown for all paths

Verified? YES/NO

• “Collecting evidence…” appears for ALL paths (execution_engine.cpp:1165-1189, inside execute()).
• “Preparing answer…” appears ONLY for CodebaseQuery success and AI chat paths (command_router.cpp:658-731, 734-743).
• ArchitectureReview shows “Collecting evidence…” but NOT “Preparing answer…” (returns at line 447 before reaching 658).
• InsufficientEvidence/Failure/UserRejected show “Collecting evidence…” but NOT “Preparing answer…” (returns at lines 467-493 before reaching 658).

Claim: Direct answer from evidence facts

Verified? YES

• command_router.cpp:661-718 – For CodebaseQuery with Success outcome and non-empty facts, builds answer by iterating evidence facts: parses [find ...], [grep ...], [read ...] entries and extracts file paths and content.

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Priority 5 – Subagent Architecture Audit

Claim: No Agent/Worker/Coordinator/Planner/SubAgent/Dispatcher architecture

Verified? YES

• Searched entire src/ and include/ directories for class definitions and references:
  • ^class.*Agent – No results (no Agent class, only AgentMode enum which is dead code)
  • ^class.*Worker – No results
  • ^class.*Coordinator – No results
  • ^class.*Planner – No results
  • SubAgent|sub_agent|sub-agent – No results
  • Dispatcher – No results
  • TaskPipeline – No results (enum value exists at metrics.h:22 but unused)
• Architecture is a single flat pipeline: Agent (not a class, just a namespace/module) → ExecutionEngine → CommandRouter.
• 30+ service classes (FileService, GitService, AIService, etc.) are leaf dependencies, not subagents.

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Summary of Gaps

Claim	Status	Evidence
Find before grep	✅ EXISTS	execution_engine.cpp:552-558
extract_best_term_plain()	❌ MISSING	No such function
Binary path detection	❌ MISSING	command_router.cpp:176-363 – no build/bin/ check
Word-level matching in find	❌ MISSING	command_router.cpp:226-248 – only == and .find()
CamelCase splitting before match	❌ MISSING	Normalization exists (line 193-198) but term may already be regex-like
“Collecting evidence…” stage	✅ EXISTS	execution_engine.cpp:1165-1189
“Preparing answer…” stage	✅ EXISTS	command_router.cpp:658-731
ArchitectureReview: no AI	✅ EXISTS	execution_engine.cpp:841-975, command_router.cpp:447-453
Subagent hierarchy	✅ NOT PRESENT	No Agent/Worker/Coordinator classes exist
Validation 28/28, Benchmark 32/32	✅ PASSING	Confirmed via test output

Root Cause: “cursor binary” Fails

The pipeline for "find cursor binary":

1. extract_best_term → prefix removal → "cursor binary" → no code-shaped words → "cursor[ _-]?binary" (regex-like literal)
2. find handler receives "cursor[ _-]?binary" as literal string
3. stem_lower.find("cursor[ _-]?binary") will never match any filename
4. Result: find:noresults → grep fallback → grep for "cursor binary" also fails (no source file contains that string)

Fix needed: Either (a) extract_best_term_plain() to join terms with simple space, or (b) word-level matching in find handler that splits the term and matches each word independently.