picoclaw/pkg/seahorse/parts_roundtrip_test.go
Liu Yuan 15a70ac45c
feat(seahorse): implement short-term memory engine (LCM) (#2285)
* feat(seahorse): implement short-term memory engine of seahorse

Add pkg/seahorse/ module implementing a SQLite-backed DAG-based summary
hierarchy for context management, ported from lossless-claw's LCM design:

- types.go + short_constants.go: core types (Message, Summary, Conversation,
  ContextItem) and configuration constants (fanout, token targets, thresholds)
- migration.go: idempotent DB schema with FTS5 trigram tokenizer for CJK
- store.go: full SQLite CRUD (conversations, messages, summaries DAG,
  context_items with ordinal gap numbering, FTS5 search)
- short_engine.go: Engine lifecycle (NewEngine, Ingest, Assemble, Compact),
  session pattern filtering (ignore/stateless glob→regex compilation),
  per-session mutex via sync.Map
- short_assembler.go: budget-aware context assembly with fresh tail protection
  (32 messages), oldest-first eviction, summary XML formatting, RebuildContextItems
- short_compaction.go: leaf compaction (messages→summary) and condensed
  compaction (summaries→higher-level summary), 3-level LLM escalation,
  CompactUntilUnder for emergency overflow
- short_retrieval.go: lookupByID, FTS5/LIKE search, recursive expand with
  token cap
- context_seahorse.go: agent.ContextManager adapter, registered as "seahorse",
  provider↔seahorse message type conversion (ToolCalls, tool_result)

* fix(seahorse): correct 3 adapter bugs in context management

- TokenCount: use full message (Content+ToolCalls+Media) instead of Content-only
- Empty Content: rebuild Content from tool_result Parts when stored empty
- Duplicate summaries: summaries only in Summary field, not in History messages
- Grep: fix SearchResult.Snippet→Content for summaries
- Schema: fix FTS5 SQL uses VIRTUAL TABLE not TEMP TABLE
- TestFTS5SQLConstants: verify FTS5 SQL syntax correctness
- Test: fix flaky TestCompactLeaf

* fix(agent): ingest steering messages into seahorse SQLite

Steering messages were only persisted to session JSONL but not ingested
into seahorse SQLite, causing them to be missing from context assembly.

Added `ts.ingestMessage(turnCtx, al, pm)` call in the steering message
injection block alongside the existing JSONL persistence.

Test: TestSeahorseSteeringMessageIngested verifies steering messages
appear in seahorse SQLite DB after being processed.

* fix(seahorse): address 3 blocking bugs from code review

- Fix resequenceContextItemsTx scan error handling (store.go:850)
  Changed `return err` to `return scanErr` to properly propagate scan errors
  instead of returning nil (which silently corrupts data)

- Fix sql.NullString for INTEGER column (store.go:847)
  Changed `mid` from sql.NullString to sql.NullInt64 since message_id
  is INTEGER in schema. Removed unnecessary strconv.ParseInt call.

- Fix compactCondensed fallback deleting non-candidate items
  Added ReplaceContextItemsWithSummary method for per-item deletion
  when candidates are not contiguous in ordinal space.
  Optimized to use range deletion when candidates are consecutive.

* fix(seahorse): pass Budget to Compact for correct condensed threshold

Issue #4 from PR review: When Budget was not passed to seahorse.Compact,
it defaulted to `tokensBefore * 0.75`, making `tokensBefore > budget`
always true and causing condensed compaction to trigger unnecessarily.

Changes:
- context_seahorse.go: Forward Budget from CompactRequest to CompactInput
- loop.go: Pass Budget (ContextWindow) in all 3 Compact calls
- Add test verifying condensed is skipped when tokens < threshold
- Fix lint issues in store.go and store_test.go

* fix(seahorse): add mutex for assembler lazy initialization

Issue #5 from PR review: The check-then-create pattern for e.assembler
was a data race when multiple goroutines called Assemble() concurrently:
    if e.assembler == nil {
        e.assembler = &Assembler{...}
    }

Changes:
- Add assemblerMu sync.Mutex to Engine struct
- Add initAssemblerOnce() using double-checked locking (same pattern as initCompactionOnce)
- Add TestAssemblerLazyInitRace to verify thread-safety

* fix(seahorse): handle non-consecutive depths in selectShallowestCondensationCandidate

Issue #8 from PR review: the loop iterated depth 0, 1, 2... assuming
consecutive keys, but break when key was missing caused deeper depths
to never be checked.

Fix: collect all existing depth keys, sort, then iterate in order.

* fix(seahorse): wrap DeleteMessagesAfterID and appendContextItems in transactions

- DeleteMessagesAfterID: wrap all DELETE operations in a transaction for
  atomicity, remove redundant manual FTS delete (handled by trigger)
- appendContextItems: use transaction to fix read-then-write race condition
- Add GetMaxOrdinalTx and resolveItemTokenCountTx for transaction-scoped queries
- Remove unused resolveItemTokenCount function

Fixes PR review issues 6 and 7.

* fix(seahorse): derive readable content from Parts and cap CompactUntilUnder iterations

- Derive readable content from MessageParts in AddMessageWithParts so
  FTS5 indexing and summary formatting can access tool call information
- formatMessagesForSummary and truncateSummary now fall back to Parts
  when Content is empty, fixing blank summaries for Part-based messages
- Add MaxCompactIterations (20) to prevent CompactUntilUnder infinite
  loops; exceeded iterations are logged as warnings
2026-04-05 09:05:16 +08:00

144 lines
4.5 KiB
Go

package seahorse
import (
"context"
"testing"
"time"
)
// =============================================================================
// Bug 1: formatMessagesForSummary ignores Parts
// - formatMessagesForSummary only reads m.Content, empty for Part-based messages
// - truncateSummary has same issue
// =============================================================================
func TestFormatMessagesForSummaryIncludesParts(t *testing.T) {
ts := time.Date(2025, 1, 1, 12, 0, 0, 0, time.UTC)
messages := []Message{
{ID: 1, Role: "user", Content: "hello world", CreatedAt: ts},
{
ID: 2,
Role: "assistant",
Content: "", // empty — real content is in Parts
Parts: []MessagePart{
{Type: "text", Text: "I will run a command"},
{Type: "tool_use", Name: "bash", Arguments: `{"command":"ls -la"}`, ToolCallID: "call_1"},
},
CreatedAt: ts.Add(time.Minute),
},
{
ID: 3,
Role: "tool",
Content: "", // empty — real content is in Parts
Parts: []MessagePart{
{Type: "tool_result", Text: "file1.txt\nfile2.txt", ToolCallID: "call_1"},
},
CreatedAt: ts.Add(2 * time.Minute),
},
}
result := formatMessagesForSummary(messages)
// Must contain the plain text message
if !contains(result, "hello world") {
t.Error("formatMessagesForSummary: missing plain text content")
}
// Must contain tool_use info (not blank)
if !contains(result, "bash") || !contains(result, "ls -la") {
t.Errorf("formatMessagesForSummary: tool_use info missing from Parts.\nGot:\n%s", result)
}
// Must contain tool_result info (not blank)
if !contains(result, "file1.txt") {
t.Errorf("formatMessagesForSummary: tool_result text missing from Parts.\nGot:\n%s", result)
}
}
func TestTruncateSummaryIncludesParts(t *testing.T) {
messages := []Message{
{ID: 1, Role: "user", Content: "run the tests", CreatedAt: time.Now()},
{
ID: 2,
Role: "assistant",
Content: "", // empty
Parts: []MessagePart{
{Type: "tool_use", Name: "bash", Arguments: `{"command":"go test ./..."}`, ToolCallID: "call_1"},
},
CreatedAt: time.Now(),
},
{
ID: 3,
Role: "tool",
Content: "", // empty
Parts: []MessagePart{
{Type: "tool_result", Text: "PASS\nok 3.2s", ToolCallID: "call_1"},
},
CreatedAt: time.Now(),
},
}
result := truncateSummary(messages)
// Must contain plain text
if !contains(result, "run the tests") {
t.Error("truncateSummary: missing plain text content")
}
// Must contain tool info from Parts (not blank)
if !contains(result, "bash") || !contains(result, "go test") {
t.Errorf("truncateSummary: tool_use info missing from Parts.\nGot:\n%s", result)
}
// Must contain tool_result from Parts
if !contains(result, "PASS") {
t.Errorf("truncateSummary: tool_result text missing from Parts.\nGot:\n%s", result)
}
}
// =============================================================================
// Bug 2: SearchMessages cannot find Part-based messages
// - FTS5 indexes empty content, LIKE queries empty content
// =============================================================================
func TestSearchMessagesFindsPartBasedMessages(t *testing.T) {
s := openTestStore(t)
ctx := context.Background()
conv, _ := s.GetOrCreateConversation(ctx, "agent:search-parts")
convID := conv.ConversationID
// Add a plain message (searchable)
s.AddMessage(ctx, convID, "user", "list the files please", 5)
// Add a Part-based message (tool_use) — currently NOT searchable
parts := []MessagePart{
{Type: "tool_use", Name: "bash", Arguments: `{"command":"grep -r TODO ."}`, ToolCallID: "call_1"},
}
s.AddMessageWithParts(ctx, convID, "assistant", parts, 10)
// Add a Part-based message (tool_result) — currently NOT searchable
resultParts := []MessagePart{
{Type: "tool_result", Text: "main.go:42: TODO fix this bug", ToolCallID: "call_1"},
}
s.AddMessageWithParts(ctx, convID, "tool", resultParts, 10)
// Search for "grep" — should find the tool_use message
results, err := s.SearchMessages(ctx, SearchInput{Pattern: "grep"})
if err != nil {
t.Fatalf("SearchMessages: %v", err)
}
if len(results) == 0 {
t.Error("SearchMessages: 'grep' not found — Part-based messages are invisible to search")
}
// Search for "TODO fix" — should find the tool_result message
results2, err := s.SearchMessages(ctx, SearchInput{Pattern: "TODO fix"})
if err != nil {
t.Fatalf("SearchMessages: %v", err)
}
if len(results2) == 0 {
t.Error("SearchMessages: 'TODO fix' not found — tool_result messages are invisible to search")
}
}