fix(coderd): sanitize Anthropic provider tool history (#24706)

Anthropic can reject replayed chat histories when a provider-executed
tool call, such as `web_search`, is present without its matching
provider result block.

This sanitizes unpaired Anthropic provider-executed tool calls during
prompt reconstruction, before Anthropic requests, and before persistence
so existing poisoned histories can continue and new malformed turns are
not stored.

Resolves: CODAGT-259

> Mux is acting on Mike's behalf.
This commit is contained in:
Michael Suchacz
2026-04-24 23:57:30 +02:00
committed by GitHub
parent 780aa6ce94
commit 0211448d09
7 changed files with 1090 additions and 63 deletions
+1 -1
View File
@@ -1066,7 +1066,7 @@ func TestListChats(t *testing.T) {
}
}
return false
}, testutil.WaitShort, testutil.IntervalFast)
}, testutil.WaitLong, testutil.IntervalFast)
}
// Fetch first page with limit=2.
+8
View File
@@ -6162,6 +6162,10 @@ func (p *Server) runChat(
if err := g2.Wait(); err != nil {
return result, err
}
prompt, sanitizeStats := chatprompt.SanitizeAnthropicProviderToolCalls(model.Provider(), prompt)
chatprompt.LogAnthropicProviderToolSanitization(
ctx, logger, "persisted_history_replay", model.Provider(), model.Model(), sanitizeStats,
)
subagentInstruction := ""
if !isRootChat {
subagentInstruction = defaultSubagentInstruction
@@ -6785,6 +6789,10 @@ func (p *Server) runChat(
if err != nil {
return nil, xerrors.Errorf("convert reloaded messages: %w", err)
}
reloadedPrompt, sanitizeStats := chatprompt.SanitizeAnthropicProviderToolCalls(model.Provider(), reloadedPrompt)
chatprompt.LogAnthropicProviderToolSanitization(
reloadCtx, logger, "reload_messages", model.Provider(), model.Model(), sanitizeStats,
)
// Re-derive instruction and skills from the reloaded
// messages so that any context added during the
// chatloop (e.g. via persistInstructionFiles when
+11 -5
View File
@@ -2586,7 +2586,13 @@ func TestPromoteQueuedMessageUsesQueuedModelConfigID(t *testing.T) {
storedChat, err := db.GetChatByID(ctx, chat.ID)
require.NoError(t, err)
require.Equal(t, modelConfigB.ID, storedChat.LastModelConfigID)
require.Equal(t, database.ChatStatusPending, storedChat.Status)
// The processor can pick up the pending chat immediately after
// promotion, so this test only requires that promotion moved it out of
// waiting and preserved the queued model configuration.
require.Contains(t, []database.ChatStatus{
database.ChatStatusPending,
database.ChatStatusRunning,
}, storedChat.Status)
}
func TestPromoteQueuedMessageReloadsChatWhenModelConfigChangesDuringPending(t *testing.T) {
@@ -2678,7 +2684,7 @@ func TestAutoPromoteQueuedMessagesPreservesPerTurnModelOrder(t *testing.T) {
t.Parallel()
db, ps := dbtestutil.NewDB(t)
ctx := testutil.Context(t, testutil.WaitLong)
ctx := testutil.Context(t, testutil.WaitSuperLong)
firstRunStarted := make(chan struct{})
allowFirstRunFinish := make(chan struct{})
@@ -2765,7 +2771,7 @@ func TestAutoPromoteQueuedMessagesPreservesPerTurnModelOrder(t *testing.T) {
require.Eventually(t, func() bool {
return requestCount.Load() >= 3
}, testutil.WaitLong, testutil.IntervalFast)
}, testutil.WaitSuperLong, testutil.IntervalFast)
chatd.WaitUntilIdleForTest(server)
queuedMessages, err := db.GetChatQueuedMessages(ctx, chat.ID)
@@ -2816,7 +2822,7 @@ func TestAutoPromoteQueuedMessageFallsBackForInvalidQueuedModelConfigID(t *testi
func testAutoPromoteQueuedMessageFallback(t *testing.T, queuedModelConfigID uuid.NullUUID) {
db, ps := dbtestutil.NewDB(t)
ctx := testutil.Context(t, testutil.WaitLong)
ctx := testutil.Context(t, testutil.WaitSuperLong)
firstRunStarted := make(chan struct{})
allowFirstRunFinish := make(chan struct{})
@@ -2871,7 +2877,7 @@ func testAutoPromoteQueuedMessageFallback(t *testing.T, queuedModelConfigID uuid
require.Eventually(t, func() bool {
return requestCount.Load() >= 2
}, testutil.WaitLong, testutil.IntervalFast)
}, testutil.WaitSuperLong, testutil.IntervalFast)
chatd.WaitUntilIdleForTest(server)
queuedMessages, err := db.GetChatQueuedMessages(ctx, chat.ID)
+127 -16
View File
@@ -193,7 +193,7 @@ type ProviderTool struct {
// stepResult holds the accumulated output of a single streaming
// step. Since we own the stream consumer, all content is tracked
// directly here — no shadow draft state needed.
// directly here, no shadow draft state needed.
type stepResult struct {
content []fantasy.Content
usage fantasy.Usage
@@ -391,6 +391,12 @@ func Run(ctx context.Context, opts RunOptions) error {
}
prepared := make([]fantasy.Message, len(messages))
copy(prepared, messages)
prepared, sanitizeStats := chatprompt.SanitizeAnthropicProviderToolCalls(provider, prepared)
chatprompt.LogAnthropicProviderToolSanitization(
ctx, opts.Logger, "pre_request", provider, modelName, sanitizeStats,
slog.F("step_index", step),
slog.F("total_steps", totalSteps),
)
if applyAnthropicCaching {
addAnthropicPromptCaching(prepared)
}
@@ -518,12 +524,18 @@ func Run(ctx context.Context, opts RunOptions) error {
})
}
contextLimit := extractContextLimit(result.providerMetadata)
if !contextLimit.Valid && opts.ContextLimitFallback > 0 {
contextLimit = sql.NullInt64{
Int64: opts.ContextLimitFallback,
Valid: true,
}
contextLimit := extractContextLimitWithFallback(
result.providerMetadata,
opts.ContextLimitFallback,
)
result.content = sanitizeAnthropicProviderToolStepContent(
ctx, opts.Logger, provider, modelName,
"dynamic_tool_persist", step, result.finishReason, result.content,
)
if len(result.content) == 0 && len(pending) == 0 {
tryCompactOnExit(ctx, opts, result.usage, result.providerMetadata)
return ErrDynamicToolCall
}
if err := opts.PersistStep(ctx, PersistedStep{
@@ -560,13 +572,21 @@ func Run(ctx context.Context, opts RunOptions) error {
}
}
// Extract context limit from provider metadata.
contextLimit := extractContextLimit(result.providerMetadata)
if !contextLimit.Valid && opts.ContextLimitFallback > 0 {
contextLimit = sql.NullInt64{
Int64: opts.ContextLimitFallback,
Valid: true,
}
contextLimit := extractContextLimitWithFallback(
result.providerMetadata,
opts.ContextLimitFallback,
)
result.content = sanitizeAnthropicProviderToolStepContent(
ctx, opts.Logger, provider, modelName,
"normal_persist", step, result.finishReason, result.content,
)
if len(result.content) == 0 {
lastUsage = result.usage
lastProviderMetadata = result.providerMetadata
stoppedByModel = true
break
}
// Persist the step. If persistence fails because
// the chat was interrupted between the previous
// check and here, fall back to the interrupt-safe
@@ -714,6 +734,67 @@ func Run(ctx context.Context, opts RunOptions) error {
return nil
}
func sanitizeAnthropicProviderToolStepContent(
ctx context.Context,
logger slog.Logger,
provider string,
modelName string,
phase string,
step int,
finishReason fantasy.FinishReason,
content []fantasy.Content,
) []fantasy.Content {
sanitized, stats := sanitizeAnthropicProviderToolContent(provider, content)
chatprompt.LogAnthropicProviderToolSanitization(
ctx, logger, phase, provider, modelName, stats,
slog.F("step_index", step),
slog.F("finish_reason", finishReason),
)
return sanitized
}
func sanitizeAnthropicProviderToolContent(
provider string,
content []fantasy.Content,
) ([]fantasy.Content, chatprompt.AnthropicProviderToolSanitizationStats) {
var stats chatprompt.AnthropicProviderToolSanitizationStats
if provider != fantasyanthropic.Name || len(content) == 0 {
return content, stats
}
matchedResultIDs := make(map[string]struct{})
for _, block := range content {
result, ok := fantasy.AsContentType[fantasy.ToolResultContent](block)
if !ok || !result.ProviderExecuted || result.ToolCallID == "" {
continue
}
matchedResultIDs[result.ToolCallID] = struct{}{}
}
out := make([]fantasy.Content, 0, len(content))
for _, block := range content {
toolCall, ok := fantasy.AsContentType[fantasy.ToolCallContent](block)
if ok && isAnthropicProviderExecutedToolCall(provider, toolCall) {
if _, hasResult := matchedResultIDs[toolCall.ToolCallID]; !hasResult {
stats.RemovedToolCalls++
continue
}
}
out = append(out, block)
}
if stats.RemovedToolCalls == 0 {
return content, stats
}
return out, stats
}
func isAnthropicProviderExecutedToolCall(
provider string,
toolCall fantasy.ToolCallContent,
) bool {
return provider == fantasyanthropic.Name && toolCall.ProviderExecuted
}
// guardedAttempt owns an attempt-scoped context and startup guard
// around a provider stream. release is idempotent and frees the
// attempt-scoped timer/context. finish canonicalizes startup timeout
@@ -1281,9 +1362,9 @@ func flushActiveState(
}
}
// persistInterruptedStep saves all accumulated content from a
// partial stream. Since we own the stepResult directly, no shadow
// state is needed.
// persistInterruptedStep saves durable content from a partial stream.
// Provider-executed calls without results are removed because their
// result metadata cannot be synthesized safely.
func persistInterruptedStep(
ctx context.Context,
opts RunOptions,
@@ -1293,6 +1374,18 @@ func persistInterruptedStep(
return
}
provider := ""
modelName := ""
if opts.Model != nil {
provider = opts.Model.Provider()
modelName = opts.Model.Model()
}
var sanitizeStats chatprompt.AnthropicProviderToolSanitizationStats
result.content, sanitizeStats = sanitizeAnthropicProviderToolContent(provider, result.content)
chatprompt.LogAnthropicProviderToolSanitization(
ctx, opts.Logger, "interrupted_persist", provider, modelName, sanitizeStats,
)
// Track which tool calls already have results in the content.
answeredToolCalls := make(map[string]struct{})
for _, c := range result.content {
@@ -1327,6 +1420,9 @@ func persistInterruptedStep(
if _, exists := answeredToolCalls[tc.ToolCallID]; exists {
continue
}
if isAnthropicProviderExecutedToolCall(provider, tc) {
continue
}
content = append(content, fantasy.ToolResultContent{
ToolCallID: tc.ToolCallID,
ToolName: tc.ToolName,
@@ -1344,6 +1440,10 @@ func persistInterruptedStep(
answeredToolCalls[tc.ToolCallID] = struct{}{}
}
if len(content) == 0 {
return
}
persistCtx := context.WithoutCancel(ctx)
if err := opts.PersistStep(persistCtx, PersistedStep{
Content: content,
@@ -1625,6 +1725,17 @@ func extractContextLimit(metadata fantasy.ProviderMetadata) sql.NullInt64 {
}
}
func extractContextLimitWithFallback(metadata fantasy.ProviderMetadata, fallback int64) sql.NullInt64 {
contextLimit := extractContextLimit(metadata)
if contextLimit.Valid || fallback <= 0 {
return contextLimit
}
return sql.NullInt64{
Int64: fallback,
Valid: true,
}
}
func findContextLimitValue(value any) (int64, bool) {
var (
limit int64
+484 -17
View File
@@ -1019,6 +1019,95 @@ func textMessage(role fantasy.MessageRole, text string) fantasy.Message {
}
}
func requireNoProviderExecutedToolCallContent(t *testing.T, content []fantasy.Content) {
t.Helper()
for i, block := range content {
toolCall, ok := fantasy.AsContentType[fantasy.ToolCallContent](block)
if ok && toolCall.ProviderExecuted {
t.Fatalf("content[%d]: unexpected provider-executed call", i)
}
}
}
func requireNoProviderExecutedToolResultContent(t *testing.T, content []fantasy.Content) {
t.Helper()
for i, block := range content {
toolResult, ok := fantasy.AsContentType[fantasy.ToolResultContent](block)
if ok && toolResult.ProviderExecuted {
t.Fatalf("content[%d]: unexpected provider-executed result", i)
}
}
}
func requireNoProviderExecutedToolCallPrompt(t *testing.T, prompt []fantasy.Message) {
t.Helper()
for i, message := range prompt {
for j, part := range message.Content {
toolCall, ok := fantasy.AsMessagePart[fantasy.ToolCallPart](part)
if ok && toolCall.ProviderExecuted {
t.Fatalf("prompt[%d].content[%d]: unexpected provider-executed call", i, j)
}
}
}
}
func requireTextContent(t *testing.T, content []fantasy.Content, text string) fantasy.TextContent {
t.Helper()
for _, block := range content {
textContent, ok := fantasy.AsContentType[fantasy.TextContent](block)
if ok && textContent.Text == text {
return textContent
}
}
t.Fatalf("missing text content %q", text)
return fantasy.TextContent{}
}
func requireToolCallContent(t *testing.T, content []fantasy.Content, id, name string) fantasy.ToolCallContent {
t.Helper()
for _, block := range content {
toolCall, ok := fantasy.AsContentType[fantasy.ToolCallContent](block)
if ok && toolCall.ToolCallID == id && toolCall.ToolName == name {
return toolCall
}
}
t.Fatalf("missing tool call %q", id)
return fantasy.ToolCallContent{}
}
func requireToolResultContent(t *testing.T, content []fantasy.Content, id, name string) fantasy.ToolResultContent {
t.Helper()
for _, block := range content {
toolResult, ok := fantasy.AsContentType[fantasy.ToolResultContent](block)
if ok && toolResult.ToolCallID == id && toolResult.ToolName == name {
return toolResult
}
}
t.Fatalf("missing tool result %q", id)
return fantasy.ToolResultContent{}
}
func requireToolResultPrompt(t *testing.T, prompt []fantasy.Message, id string) fantasy.ToolResultPart {
t.Helper()
for _, message := range prompt {
for _, part := range message.Content {
toolResult, ok := fantasy.AsMessagePart[fantasy.ToolResultPart](part)
if ok && toolResult.ToolCallID == id {
return toolResult
}
}
}
t.Fatalf("missing prompt tool result %q", id)
return fantasy.ToolResultPart{}
}
func containsPromptSentinel(prompt []fantasy.Message) bool {
for _, message := range prompt {
if message.Role != fantasy.MessageRoleUser || len(message.Content) != 1 {
@@ -1413,7 +1502,7 @@ func TestRun_PersistStepErrorPropagates(t *testing.T) {
// TestRun_ShutdownDuringToolExecutionReturnsContextCanceled verifies that
// when the parent context is canceled (simulating server shutdown) while
// a tool is blocked, Run returns context.Canceled — not ErrInterrupted.
// a tool is blocked, Run returns context.Canceled, not ErrInterrupted.
// This matters because the caller uses the error type to decide whether
// to set chat status to "pending" (retryable on another worker) vs
// "waiting" (stuck forever).
@@ -1495,7 +1584,7 @@ func TestRun_ShutdownDuringToolExecutionReturnsContextCanceled(t *testing.T) {
<-serverCancelDone
require.Error(t, err)
// The error must NOT be ErrInterrupted — it should propagate
// The error must NOT be ErrInterrupted, it should propagate
// as context.Canceled so the caller can distinguish shutdown
// from user interruption. Use assert (not require) so both
// checks are evaluated even if the first fails.
@@ -1515,7 +1604,7 @@ func TestToResponseMessages_ProviderExecutedToolResultInAssistantMessage(t *test
Input: `{"query":"coder"}`,
ProviderExecuted: true,
},
// Provider-executed tool result — must stay in
// Provider-executed tool result, must stay in
// assistant message.
fantasy.ToolResultContent{
ToolCallID: "provider-tc-1",
@@ -1530,7 +1619,7 @@ func TestToResponseMessages_ProviderExecutedToolResultInAssistantMessage(t *test
Input: `{"path":"main.go"}`,
ProviderExecuted: false,
},
// Local tool result — should go into tool message.
// Local tool result, should go into tool message.
fantasy.ToolResultContent{
ToolCallID: "local-tc-1",
ToolName: "read_file",
@@ -1584,28 +1673,28 @@ func TestToResponseMessages_FiltersEmptyTextAndReasoningParts(t *testing.T) {
sr := stepResult{
content: []fantasy.Content{
// Empty text — should be filtered.
// Empty text, should be filtered.
fantasy.TextContent{Text: ""},
// Whitespace-only text — should be filtered.
// Whitespace-only text, should be filtered.
fantasy.TextContent{Text: " \t\n"},
// Empty reasoning — should be filtered.
// Empty reasoning, should be filtered.
fantasy.ReasoningContent{Text: ""},
// Whitespace-only reasoning — should be filtered.
// Whitespace-only reasoning, should be filtered.
fantasy.ReasoningContent{Text: " \n"},
// Non-empty text — should pass through.
// Non-empty text, should pass through.
fantasy.TextContent{Text: "hello world"},
// Leading/trailing whitespace with content — kept
// Leading/trailing whitespace with content, kept
// with the original value (not trimmed).
fantasy.TextContent{Text: " hello "},
// Non-empty reasoning — should pass through.
// Non-empty reasoning, should pass through.
fantasy.ReasoningContent{Text: "let me think"},
// Tool call — should be unaffected by filtering.
// Tool call, should be unaffected by filtering.
fantasy.ToolCallContent{
ToolCallID: "tc-1",
ToolName: "read_file",
Input: `{"path":"main.go"}`,
},
// Local tool result — should be unaffected by filtering.
// Local tool result, should be unaffected by filtering.
fantasy.ToolResultContent{
ToolCallID: "tc-1",
ToolName: "read_file",
@@ -1630,7 +1719,7 @@ func TestToResponseMessages_FiltersEmptyTextAndReasoningParts(t *testing.T) {
require.True(t, ok, "part 0 should be TextPart")
assert.Equal(t, "hello world", textPart.Text)
// Part 1: padded text — original whitespace preserved.
// Part 1: padded text, original whitespace preserved.
paddedPart, ok := fantasy.AsMessagePart[fantasy.TextPart](assistantMsg.Content[1])
require.True(t, ok, "part 1 should be TextPart")
assert.Equal(t, " hello ", paddedPart.Text)
@@ -1796,7 +1885,7 @@ func TestRun_ProviderExecutedToolResultTimestamps(t *testing.T) {
StreamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
// Simulate a provider-executed tool call and result
// (e.g. Anthropic web search) followed by a text
// response — all in a single stream.
// response, all in a single stream.
return streamFromParts([]fantasy.StreamPart{
{Type: fantasy.StreamPartTypeToolInputStart, ID: "ws-1", ToolCallName: "web_search", ProviderExecuted: true},
{Type: fantasy.StreamPartTypeToolInputDelta, ID: "ws-1", Delta: `{"query":"coder"}`, ProviderExecuted: true},
@@ -1808,7 +1897,7 @@ func TestRun_ProviderExecutedToolResultTimestamps(t *testing.T) {
ToolCallInput: `{"query":"coder"}`,
ProviderExecuted: true,
},
// Provider-executed tool result — emitted by
// Provider-executed tool result, emitted by
// the provider, not our tool runner.
{
Type: fantasy.StreamPartTypeToolResult,
@@ -1855,6 +1944,384 @@ func TestRun_ProviderExecutedToolResultTimestamps(t *testing.T) {
"tool-result timestamp must be >= tool-call timestamp")
}
func TestRun_AnthropicDropsUnpairedProviderToolBeforePersist(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
toolName string
toolInput string
}{
{
name: "web_search",
toolName: "web_search",
toolInput: `{"query":"coder"}`,
},
{
name: "code_execution",
toolName: "code_execution",
toolInput: `{"code":"print(1)"}`,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
model := &chattest.FakeModel{
ProviderName: fantasyanthropic.Name,
StreamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
return streamFromParts([]fantasy.StreamPart{
{Type: fantasy.StreamPartTypeToolInputStart, ID: "pt-1", ToolCallName: tc.toolName, ProviderExecuted: true},
{Type: fantasy.StreamPartTypeToolInputDelta, ID: "pt-1", Delta: tc.toolInput, ProviderExecuted: true},
{Type: fantasy.StreamPartTypeToolInputEnd, ID: "pt-1"},
{
Type: fantasy.StreamPartTypeToolCall,
ID: "pt-1",
ToolCallName: tc.toolName,
ToolCallInput: tc.toolInput,
ProviderExecuted: true,
},
{Type: fantasy.StreamPartTypeFinish, FinishReason: fantasy.FinishReasonStop},
}), nil
},
}
persistCalls := 0
err := Run(context.Background(), RunOptions{
Model: model,
Messages: []fantasy.Message{
textMessage(fantasy.MessageRoleUser, "run provider tool"),
},
MaxSteps: 1,
PersistStep: func(_ context.Context, _ PersistedStep) error {
persistCalls++
return nil
},
})
require.NoError(t, err)
require.Equal(t, 0, persistCalls)
})
}
}
func TestRun_AnthropicKeepsPairedWebSearchBeforePersist(t *testing.T) {
t.Parallel()
model := &chattest.FakeModel{
ProviderName: fantasyanthropic.Name,
StreamFn: func(_ context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
return streamFromParts([]fantasy.StreamPart{
{Type: fantasy.StreamPartTypeToolInputStart, ID: "ws-1", ToolCallName: "web_search", ProviderExecuted: true},
{Type: fantasy.StreamPartTypeToolInputDelta, ID: "ws-1", Delta: `{"query":"coder"}`, ProviderExecuted: true},
{Type: fantasy.StreamPartTypeToolInputEnd, ID: "ws-1"},
{
Type: fantasy.StreamPartTypeToolCall,
ID: "ws-1",
ToolCallName: "web_search",
ToolCallInput: `{"query":"coder"}`,
ProviderExecuted: true,
},
{
Type: fantasy.StreamPartTypeToolResult,
ID: "ws-1",
ToolCallName: "web_search",
ProviderExecuted: true,
},
{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "search done"},
{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
{Type: fantasy.StreamPartTypeFinish, FinishReason: fantasy.FinishReasonStop},
}), nil
},
}
var persistedSteps []PersistedStep
err := Run(context.Background(), RunOptions{
Model: model,
Messages: []fantasy.Message{
textMessage(fantasy.MessageRoleUser, "search for coder"),
},
MaxSteps: 1,
PersistStep: func(_ context.Context, step PersistedStep) error {
persistedSteps = append(persistedSteps, step)
return nil
},
})
require.NoError(t, err)
require.Len(t, persistedSteps, 1)
toolCall := requireToolCallContent(t, persistedSteps[0].Content, "ws-1", "web_search")
require.True(t, toolCall.ProviderExecuted)
toolResult := requireToolResultContent(t, persistedSteps[0].Content, "ws-1", "web_search")
require.True(t, toolResult.ProviderExecuted)
requireTextContent(t, persistedSteps[0].Content, "search done")
}
func TestRun_AnthropicInterruptedWebSearchDoesNotPersistSyntheticResult(t *testing.T) {
t.Parallel()
started := make(chan struct{})
model := &chattest.FakeModel{
ProviderName: fantasyanthropic.Name,
StreamFn: func(ctx context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
return iter.Seq[fantasy.StreamPart](func(yield func(fantasy.StreamPart) bool) {
if !yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeToolInputStart,
ID: "ws-1",
ToolCallName: "web_search",
ProviderExecuted: true,
}) {
return
}
if !yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeToolInputDelta,
ID: "ws-1",
Delta: `{"query":"coder"}`,
ProviderExecuted: true,
}) {
return
}
close(started)
<-ctx.Done()
_ = yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeError,
Error: ctx.Err(),
})
}), nil
},
}
ctx, cancel := context.WithCancelCause(context.Background())
defer cancel(nil)
go func() {
<-started
cancel(ErrInterrupted)
}()
persistCalls := 0
err := Run(ctx, RunOptions{
Model: model,
Messages: []fantasy.Message{
textMessage(fantasy.MessageRoleUser, "search for coder"),
},
MaxSteps: 1,
PersistStep: func(_ context.Context, _ PersistedStep) error {
persistCalls++
return nil
},
})
require.ErrorIs(t, err, ErrInterrupted)
require.Equal(t, 0, persistCalls)
}
func TestRun_AnthropicInterruptedProviderToolKeepsLocalSyntheticResult(t *testing.T) {
t.Parallel()
started := make(chan struct{})
model := &chattest.FakeModel{
ProviderName: fantasyanthropic.Name,
StreamFn: func(ctx context.Context, _ fantasy.Call) (fantasy.StreamResponse, error) {
return iter.Seq[fantasy.StreamPart](func(yield func(fantasy.StreamPart) bool) {
if !yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeToolInputStart,
ID: "ws-1",
ToolCallName: "web_search",
ProviderExecuted: true,
}) {
return
}
if !yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeToolInputDelta,
ID: "ws-1",
Delta: `{"query":"coder"}`,
ProviderExecuted: true,
}) {
return
}
if !yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeToolInputStart,
ID: "tc-1",
ToolCallName: "read_file",
}) {
return
}
if !yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeToolInputDelta,
ID: "tc-1",
Delta: `{"path":"main.go"}`,
}) {
return
}
close(started)
<-ctx.Done()
_ = yield(fantasy.StreamPart{
Type: fantasy.StreamPartTypeError,
Error: ctx.Err(),
})
}), nil
},
}
ctx, cancel := context.WithCancelCause(context.Background())
defer cancel(nil)
go func() {
<-started
cancel(ErrInterrupted)
}()
var persistedSteps []PersistedStep
err := Run(ctx, RunOptions{
Model: model,
Messages: []fantasy.Message{
textMessage(fantasy.MessageRoleUser, "search and read"),
},
MaxSteps: 1,
PersistStep: func(_ context.Context, step PersistedStep) error {
persistedSteps = append(persistedSteps, step)
return nil
},
})
require.ErrorIs(t, err, ErrInterrupted)
require.Len(t, persistedSteps, 1)
requireNoProviderExecutedToolCallContent(t, persistedSteps[0].Content)
requireNoProviderExecutedToolResultContent(t, persistedSteps[0].Content)
toolCall := requireToolCallContent(t, persistedSteps[0].Content, "tc-1", "read_file")
require.False(t, toolCall.ProviderExecuted)
toolResult := requireToolResultContent(t, persistedSteps[0].Content, "tc-1", "read_file")
require.False(t, toolResult.ProviderExecuted)
_, isErr := toolResult.Result.(fantasy.ToolResultOutputContentError)
require.True(t, isErr)
}
func TestRun_AnthropicSanitizesProviderToolBeforeRequest(t *testing.T) {
t.Parallel()
var capturedPrompt []fantasy.Message
model := &chattest.FakeModel{
ProviderName: fantasyanthropic.Name,
StreamFn: func(_ context.Context, call fantasy.Call) (fantasy.StreamResponse, error) {
capturedPrompt = append([]fantasy.Message(nil), call.Prompt...)
return streamFromParts([]fantasy.StreamPart{
{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "done"},
{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
{Type: fantasy.StreamPartTypeFinish, FinishReason: fantasy.FinishReasonStop},
}), nil
},
}
err := Run(context.Background(), RunOptions{
Model: model,
Messages: []fantasy.Message{
textMessage(fantasy.MessageRoleUser, "search for coder"),
{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
fantasy.ToolCallPart{
ToolCallID: "ws-1",
ToolName: "web_search",
Input: `{"query":"coder"}`,
ProviderExecuted: true,
},
},
},
textMessage(fantasy.MessageRoleUser, "continue"),
},
MaxSteps: 1,
PersistStep: func(_ context.Context, _ PersistedStep) error {
return nil
},
})
require.NoError(t, err)
require.Len(t, capturedPrompt, 1)
require.Equal(t, fantasy.MessageRoleUser, capturedPrompt[0].Role)
require.Len(t, capturedPrompt[0].Content, 2)
requireNoProviderExecutedToolCallPrompt(t, capturedPrompt)
}
func TestRun_AnthropicSanitizesWebSearchBeforeContinuation(t *testing.T) {
t.Parallel()
var mu sync.Mutex
var streamCalls int
var secondCallPrompt []fantasy.Message
model := &chattest.FakeModel{
ProviderName: fantasyanthropic.Name,
StreamFn: func(_ context.Context, call fantasy.Call) (fantasy.StreamResponse, error) {
mu.Lock()
step := streamCalls
streamCalls++
mu.Unlock()
switch step {
case 0:
return streamFromParts([]fantasy.StreamPart{
{Type: fantasy.StreamPartTypeToolInputStart, ID: "ws-1", ToolCallName: "web_search", ProviderExecuted: true},
{Type: fantasy.StreamPartTypeToolInputDelta, ID: "ws-1", Delta: `{"query":"coder"}`, ProviderExecuted: true},
{Type: fantasy.StreamPartTypeToolInputEnd, ID: "ws-1"},
{
Type: fantasy.StreamPartTypeToolCall,
ID: "ws-1",
ToolCallName: "web_search",
ToolCallInput: `{"query":"coder"}`,
ProviderExecuted: true,
},
{Type: fantasy.StreamPartTypeToolInputStart, ID: "tc-1", ToolCallName: "read_file"},
{Type: fantasy.StreamPartTypeToolInputDelta, ID: "tc-1", Delta: `{"path":"main.go"}`},
{Type: fantasy.StreamPartTypeToolInputEnd, ID: "tc-1"},
{
Type: fantasy.StreamPartTypeToolCall,
ID: "tc-1",
ToolCallName: "read_file",
ToolCallInput: `{"path":"main.go"}`,
},
{Type: fantasy.StreamPartTypeFinish, FinishReason: fantasy.FinishReasonToolCalls},
}), nil
default:
mu.Lock()
secondCallPrompt = append([]fantasy.Message(nil), call.Prompt...)
mu.Unlock()
return streamFromParts([]fantasy.StreamPart{
{Type: fantasy.StreamPartTypeTextStart, ID: "text-1"},
{Type: fantasy.StreamPartTypeTextDelta, ID: "text-1", Delta: "done"},
{Type: fantasy.StreamPartTypeTextEnd, ID: "text-1"},
{Type: fantasy.StreamPartTypeFinish, FinishReason: fantasy.FinishReasonStop},
}), nil
}
},
}
var persistedSteps []PersistedStep
err := Run(context.Background(), RunOptions{
Model: model,
Messages: []fantasy.Message{
textMessage(fantasy.MessageRoleUser, "search and read"),
},
Tools: []fantasy.AgentTool{
newNoopTool("read_file"),
},
MaxSteps: 2,
PersistStep: func(_ context.Context, step PersistedStep) error {
persistedSteps = append(persistedSteps, step)
return nil
},
})
require.NoError(t, err)
require.Equal(t, 2, streamCalls)
require.Len(t, persistedSteps, 2)
requireNoProviderExecutedToolCallContent(t, persistedSteps[0].Content)
requireNoProviderExecutedToolCallPrompt(t, secondCallPrompt)
toolCall := requireToolCallContent(t, persistedSteps[0].Content, "tc-1", "read_file")
require.False(t, toolCall.ProviderExecuted)
toolResult := requireToolResultContent(t, persistedSteps[0].Content, "tc-1", "read_file")
require.False(t, toolResult.ProviderExecuted)
promptResult := requireToolResultPrompt(t, secondCallPrompt, "tc-1")
require.False(t, promptResult.ProviderExecuted)
}
// TestRun_PersistStepInterruptedFallback verifies that when the normal
// PersistStep call returns ErrInterrupted (e.g., context canceled in a
// race), the step is retried via the interrupt-safe path.
@@ -2018,7 +2485,7 @@ func TestRun_PrepareMessagesInjectsSystemContextMidLoop(t *testing.T) {
}
}
if !inserted {
// No system messages — prepend.
// No system messages, prepend.
result = append([]fantasy.Message{{
Role: fantasy.MessageRoleSystem,
Content: []fantasy.MessagePart{
+201 -14
View File
@@ -11,6 +11,7 @@ import (
"strings"
"charm.land/fantasy"
fantasyanthropic "charm.land/fantasy/providers/anthropic"
"github.com/google/uuid"
"github.com/sqlc-dev/pqtype"
"golang.org/x/xerrors"
@@ -34,6 +35,194 @@ var toolCallIDSanitizer = regexp.MustCompile(`[^a-zA-Z0-9_-]`)
var syntheticPasteFileNamePattern = regexp.MustCompile(`^pasted-text-\d{4}-\d{2}-\d{2}-\d{2}-\d{2}-\d{2}\.txt$`)
// AnthropicProviderToolSanitizationStats describes prompt changes made
// while removing unpaired Anthropic provider-executed tool calls.
type AnthropicProviderToolSanitizationStats struct {
RemovedToolCalls int
DroppedMessages int
}
// LogAnthropicProviderToolSanitization logs prompt changes made while removing
// unpaired Anthropic provider-executed tool calls.
func LogAnthropicProviderToolSanitization(
ctx context.Context,
logger slog.Logger,
phase string,
provider string,
modelName string,
stats AnthropicProviderToolSanitizationStats,
extra ...slog.Field,
) {
if stats.RemovedToolCalls == 0 {
return
}
fields := []slog.Field{
slog.F("phase", phase),
slog.F("tool_type", "provider_executed"),
slog.F("provider", provider),
slog.F("model", modelName),
slog.F("removed_tool_calls", stats.RemovedToolCalls),
slog.F("dropped_messages", stats.DroppedMessages),
}
fields = append(fields, extra...)
logger.Warn(ctx, "removed unpaired provider-executed tool calls", fields...)
}
// SanitizeAnthropicProviderToolCalls removes Anthropic provider-executed
// calls that do not have a same-message provider result.
func SanitizeAnthropicProviderToolCalls(
provider string,
messages []fantasy.Message,
) ([]fantasy.Message, AnthropicProviderToolSanitizationStats) {
var stats AnthropicProviderToolSanitizationStats
if provider != fantasyanthropic.Name || len(messages) == 0 {
return messages, stats
}
out := make([]fantasy.Message, 0, len(messages))
changed := false
for _, msg := range messages {
if msg.Role != fantasy.MessageRoleAssistant {
out = appendSanitizedMessage(out, msg)
continue
}
matchedResultIDs := make(map[string]struct{})
for _, part := range msg.Content {
result, ok := fantasy.AsMessagePart[fantasy.ToolResultPart](part)
if !ok || !result.ProviderExecuted || result.ToolCallID == "" {
continue
}
matchedResultIDs[result.ToolCallID] = struct{}{}
}
parts := make([]fantasy.MessagePart, 0, len(msg.Content))
removedFromMessage := 0
for _, part := range msg.Content {
toolCall, ok := fantasy.AsMessagePart[fantasy.ToolCallPart](part)
if ok && toolCall.ProviderExecuted {
if _, hasResult := matchedResultIDs[toolCall.ToolCallID]; !hasResult {
stats.RemovedToolCalls++
removedFromMessage++
changed = true
continue
}
}
parts = append(parts, part)
}
if removedFromMessage > 0 {
if len(parts) == 0 {
stats.DroppedMessages++
continue
}
msg.Content = parts
}
out = appendSanitizedMessage(out, msg)
}
if !changed {
return messages, stats
}
return out, stats
}
func appendSanitizedMessage(out []fantasy.Message, msg fantasy.Message) []fantasy.Message {
if len(out) == 0 || out[len(out)-1].Role != msg.Role {
return append(out, msg)
}
last := &out[len(out)-1]
lastContent := applyMessageProviderOptionsToLastPart(last.Content, last.ProviderOptions)
msgContent := applyMessageProviderOptionsToLastPart(msg.Content, msg.ProviderOptions)
content := make([]fantasy.MessagePart, 0, len(lastContent)+len(msgContent))
content = append(content, lastContent...)
content = append(content, msgContent...)
last.Content = content
last.ProviderOptions = nil
return out
}
func applyMessageProviderOptionsToLastPart(
parts []fantasy.MessagePart,
options fantasy.ProviderOptions,
) []fantasy.MessagePart {
if len(options) == 0 || len(parts) == 0 {
return parts
}
out := make([]fantasy.MessagePart, len(parts))
copy(out, parts)
lastIndex := len(out) - 1
switch part := out[lastIndex].(type) {
case fantasy.TextPart:
part.ProviderOptions = mergeProviderOptions(part.ProviderOptions, options)
out[lastIndex] = part
case *fantasy.TextPart:
if part != nil {
clone := *part
clone.ProviderOptions = mergeProviderOptions(clone.ProviderOptions, options)
out[lastIndex] = &clone
}
case fantasy.ReasoningPart:
part.ProviderOptions = mergeProviderOptions(part.ProviderOptions, options)
out[lastIndex] = part
case *fantasy.ReasoningPart:
if part != nil {
clone := *part
clone.ProviderOptions = mergeProviderOptions(clone.ProviderOptions, options)
out[lastIndex] = &clone
}
case fantasy.FilePart:
part.ProviderOptions = mergeProviderOptions(part.ProviderOptions, options)
out[lastIndex] = part
case *fantasy.FilePart:
if part != nil {
clone := *part
clone.ProviderOptions = mergeProviderOptions(clone.ProviderOptions, options)
out[lastIndex] = &clone
}
case fantasy.ToolCallPart:
part.ProviderOptions = mergeProviderOptions(part.ProviderOptions, options)
out[lastIndex] = part
case *fantasy.ToolCallPart:
if part != nil {
clone := *part
clone.ProviderOptions = mergeProviderOptions(clone.ProviderOptions, options)
out[lastIndex] = &clone
}
case fantasy.ToolResultPart:
part.ProviderOptions = mergeProviderOptions(part.ProviderOptions, options)
out[lastIndex] = part
case *fantasy.ToolResultPart:
if part != nil {
clone := *part
clone.ProviderOptions = mergeProviderOptions(clone.ProviderOptions, options)
out[lastIndex] = &clone
}
}
return out
}
func mergeProviderOptions(first, second fantasy.ProviderOptions) fantasy.ProviderOptions {
if len(first) == 0 {
return second
}
if len(second) == 0 {
return first
}
merged := make(fantasy.ProviderOptions, len(first)+len(second))
for provider, options := range first {
merged[provider] = options
}
for provider, options := range second {
if options != nil {
merged[provider] = options
}
}
return merged
}
// FileData holds resolved file content for LLM prompt building.
type FileData struct {
Name string
@@ -974,12 +1163,11 @@ func injectMissingToolResults(prompt []fantasy.Message) []fantasy.Message {
}
// Build synthetic results for any unanswered tool calls.
// Provider-executed tool calls (e.g. web_search) are
// handled server-side by the LLM provider. Their results
// may arrive in a later step and end up stored out of
// position, so we must not inject synthetic error results
// for them. The provider will re-execute the tool when it
// sees the server_tool_use without a matching result.
// Provider-executed tool calls are handled server-side by
// the LLM provider, and their result blocks contain
// provider-owned metadata. We cannot synthesize a valid
// provider result if one is missing, so provider-specific
// sanitization removes unpaired calls before replay.
var missing []fantasy.MessagePart
for _, tc := range toolCalls {
if tc.ProviderExecuted {
@@ -1028,13 +1216,12 @@ func injectMissingToolUses(
continue
}
// Provider-executed tool results (e.g. web_search) may be
// persisted in a later step than the assistant message that
// initiated the tool call. When that happens they appear as
// orphans after the wrong assistant message. Filter them
// out before matching — the provider will re-execute the
// tool, and the search results are already captured in the
// subsequent assistant message's sources/text.
// Provider-executed tool results may be persisted in a
// later step than the assistant message that initiated the
// tool call. When that happens they appear as orphans after
// the wrong assistant message. Filter them out before
// matching because they cannot be converted into local
// tool-use pairs safely.
toolResults := make([]fantasy.ToolResultPart, 0, len(allToolResults))
for _, tr := range allToolResults {
if !tr.ProviderExecuted {
@@ -1632,7 +1819,7 @@ func decodeNulInString(s string) string {
_, _ = b.WriteRune(0)
i++
default:
// Unpaired sentinel — preserve as-is.
// Unpaired sentinel, preserve as-is.
_, _ = b.WriteRune(runes[i])
}
} else {
+258 -10
View File
@@ -59,6 +59,245 @@ func convertMessagesWithoutFiles(t *testing.T, messages []database.ChatMessage)
return prompt
}
func TestSanitizeAnthropicProviderToolCalls(t *testing.T) {
t.Parallel()
textPart := fantasy.TextPart{Text: "Here is a summary."}
webSearchCall := fantasy.ToolCallPart{
ToolCallID: "srvtoolu_search",
ToolName: "web_search",
Input: `{"query":"coder"}`,
ProviderExecuted: true,
}
matchedResult := fantasy.ToolResultPart{
ToolCallID: "srvtoolu_search",
Output: fantasy.ToolResultOutputContentText{Text: `{"ok":true}`},
ProviderExecuted: true,
}
codeExecutionCall := fantasy.ToolCallPart{
ToolCallID: "srvtoolu_code",
ToolName: "code_execution",
Input: `{"code":"print(1)"}`,
ProviderExecuted: true,
}
localCall := fantasy.ToolCallPart{
ToolCallID: "toolu_local",
ToolName: "read_file",
Input: `{"path":"main.go"}`,
}
unpairedWebSearchCall := webSearchCall
unpairedWebSearchCall.ToolCallID = "srvtoolu_unpaired"
disableParallelToolUse := true
providerOptions := fantasy.ProviderOptions{
fantasyanthropic.Name: &fantasyanthropic.ProviderOptions{
DisableParallelToolUse: &disableParallelToolUse,
},
}
enableParallelToolUse := false
providerOptionsAllowParallel := fantasy.ProviderOptions{
fantasyanthropic.Name: &fantasyanthropic.ProviderOptions{
DisableParallelToolUse: &enableParallelToolUse,
},
}
testCases := []struct {
name string
provider string
messages []fantasy.Message
want []fantasy.Message
wantRemoved int
wantDropped int
}{
{
name: "removes unpaired call and keeps text",
provider: fantasyanthropic.Name,
messages: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
textPart,
webSearchCall,
},
}},
want: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{textPart},
}},
wantRemoved: 1,
},
{
name: "drops assistant message when only part is removed",
provider: fantasyanthropic.Name,
messages: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{webSearchCall},
}},
want: []fantasy.Message{},
wantRemoved: 1,
wantDropped: 1,
},
{
name: "coalesces adjacent roles after dropping empty message",
provider: fantasyanthropic.Name,
messages: []fantasy.Message{
{
Role: fantasy.MessageRoleUser,
Content: []fantasy.MessagePart{
fantasy.TextPart{Text: "search for coder"},
},
},
{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{webSearchCall},
},
{
Role: fantasy.MessageRoleUser,
Content: []fantasy.MessagePart{
fantasy.TextPart{Text: "now summarize"},
},
ProviderOptions: providerOptions,
},
},
want: []fantasy.Message{{
Role: fantasy.MessageRoleUser,
Content: []fantasy.MessagePart{
fantasy.TextPart{Text: "search for coder"},
fantasy.TextPart{
Text: "now summarize",
ProviderOptions: providerOptions,
},
},
}},
wantRemoved: 1,
wantDropped: 1,
},
{
name: "coalesces adjacent provider options without flattening boundaries",
provider: fantasyanthropic.Name,
messages: []fantasy.Message{
{
Role: fantasy.MessageRoleUser,
Content: []fantasy.MessagePart{
fantasy.TextPart{Text: "search for coder"},
},
ProviderOptions: providerOptionsAllowParallel,
},
{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{webSearchCall},
},
{
Role: fantasy.MessageRoleUser,
Content: []fantasy.MessagePart{
fantasy.TextPart{Text: "now summarize"},
},
ProviderOptions: providerOptions,
},
},
want: []fantasy.Message{{
Role: fantasy.MessageRoleUser,
Content: []fantasy.MessagePart{
fantasy.TextPart{
Text: "search for coder",
ProviderOptions: providerOptionsAllowParallel,
},
fantasy.TextPart{
Text: "now summarize",
ProviderOptions: providerOptions,
},
},
}},
wantRemoved: 1,
wantDropped: 1,
},
{
name: "keeps matched call and result",
provider: fantasyanthropic.Name,
messages: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
webSearchCall,
matchedResult,
},
}},
want: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
webSearchCall,
matchedResult,
},
}},
},
{
name: "removes only unpaired call from mixed message",
provider: fantasyanthropic.Name,
messages: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
textPart,
webSearchCall,
matchedResult,
unpairedWebSearchCall,
},
}},
want: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
textPart,
webSearchCall,
matchedResult,
},
}},
wantRemoved: 1,
},
{
name: "removes unpaired provider call and keeps local call",
provider: fantasyanthropic.Name,
messages: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
textPart,
codeExecutionCall,
localCall,
},
}},
want: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{
textPart,
localCall,
},
}},
wantRemoved: 1,
},
{
name: "leaves other providers unchanged",
provider: "fake",
messages: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{webSearchCall},
}},
want: []fantasy.Message{{
Role: fantasy.MessageRoleAssistant,
Content: []fantasy.MessagePart{webSearchCall},
}},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
sanitized, stats := chatprompt.SanitizeAnthropicProviderToolCalls(
tc.provider,
tc.messages,
)
require.Equal(t, tc.wantRemoved, stats.RemovedToolCalls)
require.Equal(t, tc.wantDropped, stats.DroppedMessages)
require.Equal(t, tc.want, sanitized)
})
}
}
func TestConvertMessagesWithFiles_NormalizesAssistantToolCallInput(t *testing.T) {
t.Parallel()
@@ -509,6 +748,15 @@ func TestInjectMissingToolResults_SkipsProviderExecuted(t *testing.T) {
}
}
require.Equal(t, []string{"toolu_local"}, resultIDs)
sanitized, sanitizeStats := chatprompt.SanitizeAnthropicProviderToolCalls(
fantasyanthropic.Name,
prompt,
)
require.Equal(t, 1, sanitizeStats.RemovedToolCalls)
require.Len(t, sanitized, 2)
remainingToolCalls := chatprompt.ExtractToolCalls(sanitized[0].Content)
require.Len(t, remainingToolCalls, 1)
require.Equal(t, "toolu_local", remainingToolCalls[0].ToolCallID)
}
// TestInjectMissingToolUses_DropsProviderExecutedOrphans verifies that
@@ -695,7 +943,7 @@ func TestProviderExecutedResultInAssistantContent(t *testing.T) {
t.Parallel()
// The assistant message contains a PE tool call, a PE tool result,
// and a text block — mimicking a web_search step where persistStep
// and a text block, mimicking a web_search step where persistStep
// keeps the PE result inline.
assistantContent := mustMarshalContent(t, []fantasy.Content{
fantasy.ToolCallContent{
@@ -751,7 +999,7 @@ func TestProviderExecutedResultInAssistantContent(t *testing.T) {
// TestProviderExecutedResult_LegacyToolRow verifies backward
// compatibility: PE tool results that were stored as separate
// tool-role rows (legacy persistence) are still handled correctly
// by the repair passes — orphaned PE results are dropped, and
// by the repair passes, orphaned PE results are dropped, and
// matching PE results in the same step work via the existing
// injectMissingToolUses logic.
func TestProviderExecutedResult_LegacyToolRow(t *testing.T) {
@@ -1903,10 +2151,10 @@ func TestConvertMessagesWithFiles_FiltersEmptyTextAndReasoningParts(t *testing.T
t.Parallel()
parts := []codersdk.ChatMessagePart{
codersdk.ChatMessageText(""), // empty — filtered
codersdk.ChatMessageText(" \t\n "), // whitespace — filtered
codersdk.ChatMessageReasoning(""), // empty — filtered
codersdk.ChatMessageReasoning(" \n"), // whitespace — filtered
codersdk.ChatMessageText(""), // empty, filtered
codersdk.ChatMessageText(" \t\n "), // whitespace, filtered
codersdk.ChatMessageReasoning(""), // empty, filtered
codersdk.ChatMessageReasoning(" \n"), // whitespace, filtered
codersdk.ChatMessageText("hello"), // kept
codersdk.ChatMessageText(" hello "), // kept with original whitespace
codersdk.ChatMessageReasoning("thinking deeply"), // kept
@@ -1930,7 +2178,7 @@ func TestConvertMessagesWithFiles_FiltersEmptyTextAndReasoningParts(t *testing.T
require.True(t, ok, "expected TextPart at index 0")
require.Equal(t, "hello", textPart.Text)
// Leading/trailing whitespace is preserved — only
// Leading/trailing whitespace is preserved, only
// all-whitespace parts are dropped.
paddedPart, ok := fantasy.AsMessagePart[fantasy.TextPart](resultParts[1])
require.True(t, ok, "expected TextPart at index 1")
@@ -1953,9 +2201,9 @@ func TestConvertMessagesWithFiles_FiltersEmptyTextAndReasoningParts(t *testing.T
t.Parallel()
parts := []codersdk.ChatMessagePart{
codersdk.ChatMessageText(""), // empty — filtered
codersdk.ChatMessageText(" "), // whitespace — filtered
codersdk.ChatMessageReasoning(""), // empty — filtered
codersdk.ChatMessageText(""), // empty, filtered
codersdk.ChatMessageText(" "), // whitespace, filtered
codersdk.ChatMessageReasoning(""), // empty, filtered
codersdk.ChatMessageText(" reply "), // kept with whitespace
codersdk.ChatMessageToolCall("tc-1", "read_file", json.RawMessage(`{"path":"x"}`)),
}