Update setup and ingest flows

packages/context/src/ingest/adapters/metabase/chunk.test.ts

@@ -284,6 +284,18 @@ describe('chunkMetabaseStagedDir — syncMode enum coverage', () => {
     expect(allRawFiles).not.toContain('cards/200.json');
   });
 
+  it('ONLY with no selections includes every matching card for old generated configs', async () => {
+    await writeInline(dir, 'sync-config.json', {
+      ...BASE_SYNC,
+      syncMode: 'ONLY',
+      selections: [],
+    });
+    const result = await chunkMetabaseStagedDir(dir);
+    const allRawFiles = result.workUnits.flatMap((wu) => wu.rawFiles);
+    expect(allRawFiles).toContain('cards/100.json');
+    expect(allRawFiles).toContain('cards/200.json');
+  });
+
   it('EXCEPT excludes cards in selected collections; includes the rest', async () => {
     await writeInline(dir, 'sync-config.json', {
       ...BASE_SYNC,

packages/context/src/ingest/adapters/metabase/chunk.ts

@@ -66,7 +66,7 @@ function cardMatchesSyncConfig(card: StagedCardFile, config: StagedSyncConfig):
   if (card.archived) {
     return false;
   }
-  if (config.syncMode === 'ALL') {
+  if (config.syncMode === 'ALL' || (config.syncMode === 'ONLY' && config.selections.length === 0)) {
     return true;
   }
   const selectedCollections = new Set(

packages/context/src/ingest/adapters/metabase/client.test.ts

@@ -327,6 +327,40 @@ describe('MetabaseClient.getResolvedSql', () => {
     expect(result?.resolvedSql).toBe('SELECT * FROM (SELECT a, b FROM base) t ');
   });
 
+  it('inlines native-query snippets before checking for remaining variables', async () => {
+    const requestSpy = vi.fn().mockResolvedValue([
+      {
+        id: 1,
+        name: 'account_join',
+        content: 'LEFT JOIN accounts a ON a.account_id = mart.account_id',
+      },
+    ]);
+    const requestWithCustomRetrySpy = vi.fn();
+    const client = makeClient((client) => {
+      Reflect.set(client, 'request', requestSpy);
+      Reflect.set(client, 'requestWithCustomRetry', requestWithCustomRetrySpy);
+    });
+    const card = nativeCard('SELECT a.account_name FROM mart {{snippet: account_join}}', {
+      'snippet: account_join': {
+        id: 'snippet-tag',
+        name: 'snippet: account_join',
+        type: 'snippet',
+        'snippet-name': 'account_join',
+        'snippet-id': 1,
+      },
+    });
+
+    const result = await client.getResolvedSql(card);
+
+    expect(requestSpy).toHaveBeenCalledWith('GET', '/api/native-query-snippet');
+    expect(requestWithCustomRetrySpy).not.toHaveBeenCalled();
+    expect(result?.resolutionStatus).toBe('resolved');
+    expect(result?.resolvedSql).toBe(
+      'SELECT a.account_name FROM mart LEFT JOIN accounts a ON a.account_id = mart.account_id',
+    );
+    expect(result?.resolvedSql).not.toContain('{{snippet:');
+  });
+
   it('uses /api/dataset/native for naked variables and prepends a warning comment', async () => {
     const requestSpy = vi.fn().mockResolvedValue({ query: "SELECT * WHERE id = 'placeholder' AND n = 1" });
     const client = makeClient((client) => {

packages/context/src/ingest/adapters/metabase/client.ts

@@ -39,6 +39,13 @@ interface TemplateTagInfo {
   dummyValue: string | null;
 }
 
+interface NativeQuerySnippet {
+  id: number;
+  name: string;
+  content: string;
+  archived?: boolean | null;
+}
+
 interface CreateCardParams {
   name: string;
   databaseId: number;
@@ -100,6 +107,43 @@ function collectRemainingPlaceholderNames(sql: string): Set<string> {
   return names;
 }
 
+function collectRemainingSnippetNames(sql: string): Set<string> {
+  const names = new Set<string>();
+  for (const match of sql.matchAll(/\{\{\s*snippet:\s*([^}]+?)\s*\}\}/gi)) {
+    names.add(match[1].trim());
+  }
+  return names;
+}
+
+function normalizeSnippetName(name: string | null | undefined): string {
+  return (name ?? '').replace(/^snippet:\s*/i, '').trim().toLowerCase();
+}
+
+function parseNativeQuerySnippets(value: unknown): NativeQuerySnippet[] {
+  const rawItems = Array.isArray(value)
+    ? value
+    : typeof value === 'object' && value !== null && Array.isArray((value as { data?: unknown }).data)
+      ? (value as { data: unknown[] }).data
+      : [];
+  const snippets: NativeQuerySnippet[] = [];
+  for (const item of rawItems) {
+    if (typeof item !== 'object' || item === null || Array.isArray(item)) {
+      continue;
+    }
+    const rec = item as Record<string, unknown>;
+    if (typeof rec.id !== 'number' || typeof rec.name !== 'string' || typeof rec.content !== 'string') {
+      continue;
+    }
+    snippets.push({
+      id: rec.id,
+      name: rec.name,
+      content: rec.content,
+      ...(typeof rec.archived === 'boolean' ? { archived: rec.archived } : {}),
+    });
+  }
+  return snippets;
+}
+
 function injectNativeSql(datasetQuery: MetabaseDatasetQuery, sql: string): MetabaseDatasetQuery {
   if (datasetQuery?.stages?.[0]?.native !== undefined) {
     const stages = [...(datasetQuery.stages ?? [])];
@@ -148,6 +192,7 @@ export class MetabaseClient implements MetabaseRuntimeClient {
   private readonly logger: MetabaseClientLogger;
   private readonly baseUrl: string;
   private readonly config: MetabaseClientConfig;
+  private snippetCache: Promise<NativeQuerySnippet[]> | null = null;
 
   constructor(
     runtime: MetabaseClientRuntimeConfig,
@@ -261,6 +306,63 @@ export class MetabaseClient implements MetabaseRuntimeClient {
     return this.request<MetabaseCardSummary[]>('GET', '/api/card/?f=all');
   }
 
+  private getNativeQuerySnippets(): Promise<NativeQuerySnippet[]> {
+    this.snippetCache ??= this.request<unknown>('GET', '/api/native-query-snippet').then(parseNativeQuerySnippets);
+    return this.snippetCache;
+  }
+
+  private async inlineNativeQuerySnippets(
+    sql: string,
+    templateTags: MetabaseTemplateTag[],
+    cardId: number,
+  ): Promise<{ sql: string; unresolved: string[] }> {
+    const names = collectRemainingSnippetNames(sql);
+    if (names.size === 0) {
+      return { sql, unresolved: [] };
+    }
+
+    let snippets: NativeQuerySnippet[];
+    try {
+      snippets = await this.getNativeQuerySnippets();
+    } catch (error) {
+      this.logger.warn(
+        `[metabase] failed to load native query snippets for card ${cardId}; leaving snippet placeholders unresolved: ${error instanceof Error ? error.message : String(error)}`,
+      );
+      return { sql, unresolved: [...names] };
+    }
+
+    const snippetsById = new Map<number, NativeQuerySnippet>();
+    const snippetsByName = new Map<string, NativeQuerySnippet>();
+    for (const snippet of snippets) {
+      if (snippet.archived === true) {
+        continue;
+      }
+      snippetsById.set(snippet.id, snippet);
+      snippetsByName.set(normalizeSnippetName(snippet.name), snippet);
+    }
+
+    const snippetTags = templateTags.filter((tag) => tag.type === 'snippet');
+    const unresolved = new Set<string>();
+    const inlinedSql = sql.replace(/\{\{\s*snippet:\s*([^}]+?)\s*\}\}/gi, (match, rawName: string) => {
+      const normalizedName = normalizeSnippetName(rawName);
+      const tag = snippetTags.find(
+        (candidate) =>
+          normalizeSnippetName(candidate['snippet-name']) === normalizedName ||
+          normalizeSnippetName(candidate.name) === normalizedName,
+      );
+      const snippet =
+        (typeof tag?.['snippet-id'] === 'number' ? snippetsById.get(tag['snippet-id']) : undefined) ??
+        snippetsByName.get(normalizedName);
+      if (!snippet) {
+        unresolved.add(rawName.trim());
+        return match;
+      }
+      return snippet.content;
+    });
+
+    return { sql: inlinedSql, unresolved: [...unresolved] };
+  }
+
   async convertMbqlToNative(datasetQuery: MetabaseDatasetQuery): Promise<MetabaseNativeQueryResult> {
     return this.request<MetabaseNativeQueryResult>('POST', '/api/dataset/native', {
       ...datasetQuery,
@@ -351,7 +453,18 @@ export class MetabaseClient implements MetabaseRuntimeClient {
     // silently filter rows out — see incident with auction_seller_bidder_pair_suspicion).
     let processedSql = stripOptionalClauses(nativeQuery);
 
-    // Step 2: inline {{#CARD_ID}} card references locally. Recursively strip optional
+    // Step 2: inline native-query snippets. Metabase's substitution endpoint does not
+    // always expand {{snippet: name}} for fetched card SQL, but the snippets API does.
+    const snippetResult = await this.inlineNativeQuerySnippets(processedSql, templateTagEntries, card.id);
+    processedSql = snippetResult.sql;
+    if (snippetResult.unresolved.length > 0) {
+      this.logger.warn(
+        `[metabase] card ${card.id} has unresolved SQL snippets: ${snippetResult.unresolved.join(', ')}`,
+      );
+      return { resolvedSql: processedSql, templateTags, resolutionStatus: 'fallback' };
+    }
+
+    // Step 3: inline {{#CARD_ID}} card references locally. Recursively strip optional
     // clauses in referenced cards too — the same reasoning applies all the way down.
     try {
       processedSql = await expandCardReferences(processedSql, {
@@ -361,7 +474,17 @@ export class MetabaseClient implements MetabaseRuntimeClient {
           if (!referencedNative) {
             throw new Error(`referenced card ${id} has no native query`);
           }
-          return { native_query: stripOptionalClauses(referencedNative) };
+          const referencedSnippetResult = await this.inlineNativeQuerySnippets(
+            stripOptionalClauses(referencedNative),
+            Object.values(this.getTemplateTags(referenced)),
+            referenced.id,
+          );
+          if (referencedSnippetResult.unresolved.length > 0) {
+            throw new Error(
+              `referenced card ${id} has unresolved SQL snippets: ${referencedSnippetResult.unresolved.join(', ')}`,
+            );
+          }
+          return { native_query: referencedSnippetResult.sql };
         },
       });
     } catch (err) {
@@ -372,7 +495,7 @@ export class MetabaseClient implements MetabaseRuntimeClient {
       throw err;
     }
 
-    // Step 3: collect template tags that still appear in the SQL after strip + inline.
+    // Step 4: collect template tags that still appear in the SQL after strip + inline.
     // Anything bracketed-only is gone now; anything card-referenced is inlined.
     const remainingNames = collectRemainingPlaceholderNames(processedSql);
     const remainingTags = templateTagEntries.filter((tag) => tag.type !== 'snippet' && remainingNames.has(tag.name));
@@ -381,7 +504,7 @@ export class MetabaseClient implements MetabaseRuntimeClient {
       return { resolvedSql: processedSql, templateTags, resolutionStatus: 'resolved' };
     }
 
-    // Step 4: dummy-substitute the remaining naked {{ var }} placeholders via Metabase's
+    // Step 5: dummy-substitute the remaining naked {{ var }} placeholders via Metabase's
     // substitution endpoint. Only required because we can't translate dimension-tag
     // bindings to warehouse columns ourselves. Prepend a SQL comment listing every
     // dummy substitution so downstream consumers (the metabase_ingest LLM) know which

packages/context/src/ingest/adapters/metabase/fetch-scope.test.ts

@@ -57,13 +57,9 @@ describe('computeFetchScope', () => {
     });
   });
 
-  it('returns empty explicit scope for ONLY with no selections', () => {
+  it('treats generated ONLY with no selections as all', () => {
     const scope = computeFetchScope({ ...BASE_CONFIG, syncMode: 'ONLY', selections: [] });
-    expect(scope).toEqual({
-      kind: 'explicit',
-      includeCardIds: new Set(),
-      includeCollectionIds: new Set(),
-    });
+    expect(scope).toEqual({ kind: 'all' });
   });
 });
 

packages/context/src/ingest/adapters/metabase/fetch-scope.ts

@@ -11,7 +11,7 @@ export type FetchScope =
  * union the fetcher switches on. Pure function; no I/O, no side effects.
  */
 export function computeFetchScope(syncConfig: StagedSyncConfig): FetchScope {
-  if (syncConfig.syncMode === 'ALL') {
+  if (syncConfig.syncMode === 'ALL' || (syncConfig.syncMode === 'ONLY' && syncConfig.selections.length === 0)) {
     return { kind: 'all' };
   }
   const cardIds = new Set<number>();

packages/context/src/ingest/ingest-bundle.runner.ts

@@ -79,6 +79,21 @@ function countMemoryFlowActions(actions: MemoryAction[], target: MemoryAction['t
   return actions.filter((action) => action.target === target).length;
 }
 
+function isStructuredToolFailure(output: unknown): boolean {
+  if (!output || typeof output !== 'object') {
+    return false;
+  }
+  const structured = (output as { structured?: unknown }).structured;
+  return !!structured && typeof structured === 'object' && (structured as { success?: unknown }).success === false;
+}
+
+function isFailedToolCall(entry: ToolCallLogEntry): boolean {
+  if (entry.error) {
+    return true;
+  }
+  return (entry.toolName === 'sl_write_source' || entry.toolName === 'wiki_write') && isStructuredToolFailure(entry.output);
+}
+
 function reportIdFromCreateResult(result: unknown): string | undefined {
   if (!result || typeof result !== 'object' || !('id' in result)) {
     return undefined;
@@ -344,7 +359,7 @@ export class IngestBundleRunner {
             toolNames: new Set<string>(),
           } satisfies MutableToolTranscriptSummary);
         current.toolCallCount += 1;
-        current.errorCount += entry.error ? 1 : 0;
+        current.errorCount += isFailedToolCall(entry) ? 1 : 0;
         current.toolNames.add(entry.toolName);
         transcriptSummaries.set(entry.wuKey, current);
       };
@@ -712,6 +727,7 @@ export class IngestBundleRunner {
               sourceKey: job.sourceKey,
               connectionId: job.connectionId,
               jobId: job.jobId,
+              toolFailureCount: (unitKey) => transcriptSummaries.get(unitKey)?.errorCount ?? 0,
               onStepFinish: ({ stepIndex, stepBudget }) => {
                 memoryFlow?.emit({ type: 'work_unit_step', unitKey: wu.unitKey, stepIndex, stepBudget });
               },

packages/context/src/ingest/local-bundle-ingest.test.ts

@@ -1,6 +1,7 @@
 import { mkdir, mkdtemp, readFile, rm, writeFile } from 'node:fs/promises';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
+import Database from 'better-sqlite3';
 import { AgentRunnerService } from '../agent/index.js';
 import { initKtxProject, type KtxLocalProject, loadKtxProject } from '../project/index.js';
 import { makeLocalGitRepo } from '../test/make-local-git-repo.js';
@@ -57,6 +58,34 @@ class LookerSlWritingAgentRunner extends AgentRunnerService {
   }
 }
 
+class WikiWritingAgentRunner extends AgentRunnerService {
+  override runLoop = vi.fn(async (params: any) => {
+    if (params.telemetryTags?.operationName === 'ingest-bundle-wu') {
+      const wikiWrite = params.toolSet.wiki_write;
+      if (!wikiWrite?.execute) {
+        throw new Error('wiki_write tool was not available to the WorkUnit');
+      }
+      const result = await wikiWrite.execute(
+        {
+          key: 'orders_context',
+          summary: 'Orders source context',
+          content: 'Orders are purchase records used for revenue analysis.',
+          tags: ['orders'],
+        },
+        { toolCallId: 'wiki-write' },
+      );
+      if (!result.structured.success) {
+        throw new Error(result.markdown);
+      }
+    }
+    return { stopReason: 'natural' as const };
+  });
+
+  constructor() {
+    super({ llmProvider: { getModel: () => ({}) as never } as never });
+  }
+}
+
 function makeLookerRuntimeClient() {
   const lookerModels = {
     models: [{ name: 'ecommerce', label: 'Ecommerce', explores: [{ name: 'orders', label: 'Orders' }] }],
@@ -252,6 +281,33 @@ describe('canonical local ingest', () => {
     });
   });
 
+  it('indexes wiki pages written by local ingest into the SQLite knowledge tables', async () => {
+    const sourceDir = join(tempDir, 'source');
+    await mkdir(join(sourceDir, 'orders'), { recursive: true });
+    await writeFile(join(sourceDir, 'orders', 'orders.json'), '{"name":"orders"}\n', 'utf-8');
+    const agentRunner = new WikiWritingAgentRunner();
+
+    const result = await runLocalIngest({
+      project,
+      adapters: [new FakeSourceAdapter()],
+      adapter: 'fake',
+      connectionId: 'warehouse',
+      sourceDir,
+      jobId: 'wiki-local-1',
+      agentRunner,
+    });
+
+    expect(result.result.failedWorkUnits).toEqual([]);
+    const db = new Database(join(project.projectDir, '.ktx', 'db.sqlite'), { readonly: true });
+    try {
+      expect(db.prepare('SELECT key, summary FROM knowledge_pages ORDER BY key').all()).toEqual([
+        { key: 'orders_context', summary: 'Orders source context' },
+      ]);
+    } finally {
+      db.close();
+    }
+  });
+
   it('rejects direct Metabase scheduled pulls before requiring a local ingest LLM provider', async () => {
     const projectDir = join(tempDir, 'metabase-project');
     await initKtxProject({ projectDir, projectName: 'warehouse' });

packages/context/src/ingest/local-bundle-runtime.ts

@@ -56,6 +56,8 @@ import {
   type KnowledgeIndexPort,
   KnowledgeWikiService,
   searchLocalKnowledgePages,
+  SqliteKnowledgeIndex,
+  type SqliteKnowledgeIndexPage,
   WikiListTagsTool,
   WikiReadTool,
   WikiRemoveTool,
@@ -257,6 +259,17 @@ function parseWiki(raw: string): { summary: string; content: string } {
   };
 }
 
+function parseWikiTags(raw: string): string[] {
+  const match = raw.match(/^---\n([\s\S]*?)\n---\n?/);
+  if (!match) {
+    return [];
+  }
+  const frontmatter = (YAML.parse(match[1]) ?? {}) as Record<string, unknown>;
+  return Array.isArray(frontmatter.tags)
+    ? frontmatter.tags.filter((tag): tag is string => typeof tag === 'string')
+    : [];
+}
+
 function scoreText(text: string, query: string): number {
   const normalized = query.toLowerCase().trim();
   if (!normalized) {
@@ -271,21 +284,49 @@ function scoreText(text: string, query: string): number {
 }
 
 class LocalKnowledgeIndex implements KnowledgeIndexPort {
-  constructor(private readonly project: KtxLocalProject) {}
+  private readonly sqlite: SqliteKnowledgeIndex;
 
-  async upsertPage(): Promise<void> {}
-
-  async applyDiffTransactional(): Promise<void> {}
-
-  async getExistingSearchTexts(): Promise<Map<string, { searchText: string; hasEmbedding: boolean }>> {
-    return new Map();
+  constructor(private readonly project: KtxLocalProject) {
+    this.sqlite = new SqliteKnowledgeIndex({ dbPath: ktxLocalStateDbPath(project) });
   }
 
-  async deleteStale(): Promise<void> {}
+  async upsertPage(): Promise<void> {
+    await this.syncAllPagesFromDisk();
+  }
 
-  async deleteByScope(): Promise<void> {}
+  async applyDiffTransactional(): Promise<void> {
+    await this.syncAllPagesFromDisk();
+  }
 
-  async deleteByKey(): Promise<void> {}
+  async getExistingSearchTexts(
+    scope: string,
+    scopeId: string | null,
+  ): Promise<Map<string, { searchText: string; hasEmbedding: boolean }>> {
+    const prefix = scope === 'GLOBAL' ? 'knowledge/global/' : `knowledge/user/${scopeId}/`;
+    const result = new Map<string, { searchText: string; hasEmbedding: boolean }>();
+    for (const [path, page] of this.sqlite.getExistingPages()) {
+      if (!path.startsWith(prefix)) {
+        continue;
+      }
+      result.set(path.slice(prefix.length).replace(/\.md$/, ''), {
+        searchText: page.searchText,
+        hasEmbedding: page.embedding !== null,
+      });
+    }
+    return result;
+  }
+
+  async deleteStale(): Promise<void> {
+    await this.syncAllPagesFromDisk();
+  }
+
+  async deleteByScope(): Promise<void> {
+    await this.syncAllPagesFromDisk();
+  }
+
+  async deleteByKey(): Promise<void> {
+    await this.syncAllPagesFromDisk();
+  }
 
   async findPageByKey(scope: string, scopeId: string | null, pageKey: string) {
     const path = scope === 'GLOBAL' ? `knowledge/global/${pageKey}.md` : `knowledge/user/${scopeId}/${pageKey}.md`;
@@ -344,6 +385,41 @@ class LocalKnowledgeIndex implements KnowledgeIndexPort {
       .sort((left, right) => right.rrfScore - left.rrfScore || left.pageKey.localeCompare(right.pageKey))
       .slice(0, limit);
   }
+
+  private async syncAllPagesFromDisk(): Promise<void> {
+    const listed = await this.project.fileStore.listFiles('knowledge', true);
+    const pages: SqliteKnowledgeIndexPage[] = [];
+    for (const file of listed.files.filter((entry) => entry.endsWith('.md'))) {
+      const parsedPath = parseKnowledgeIndexPath(file);
+      if (!parsedPath) {
+        continue;
+      }
+      const path = `knowledge/${file}`;
+      const raw = await this.project.fileStore.readFile(path);
+      const parsed = parseWiki(raw.content);
+      pages.push({
+        path,
+        key: parsedPath.pageKey,
+        scope: parsedPath.scope,
+        summary: parsed.summary,
+        content: parsed.content,
+        tags: parseWikiTags(raw.content),
+        embedding: null,
+      });
+    }
+    this.sqlite.sync(pages);
+  }
+}
+
+function parseKnowledgeIndexPath(file: string): { scope: 'GLOBAL' | 'USER'; pageKey: string } | null {
+  const segments = file.split('/');
+  if (segments.length === 2 && segments[0] === 'global') {
+    return { scope: 'GLOBAL', pageKey: segments[1].replace(/\.md$/, '') };
+  }
+  if (segments.length === 3 && segments[0] === 'user') {
+    return { scope: 'USER', pageKey: segments[2].replace(/\.md$/, '') };
+  }
+  return null;
 }
 
 class NoopKnowledgeEventPort implements KnowledgeEventPort {

packages/context/src/ingest/stages/stage-3-work-units.test.ts

@@ -106,6 +106,21 @@ describe('Stage 3 — executeWorkUnit', () => {
     expect(deps.resetHardTo).toHaveBeenCalledWith('pre');
   });
 
+  it('tool failures reset to the pre-WU SHA and mark WU failed even when the loop ends naturally', async () => {
+    const deps = makeDeps();
+    deps.sessionWorktreeGit.revParseHead = vi.fn().mockResolvedValueOnce('pre').mockResolvedValueOnce('post');
+    deps.agentRunner.runLoop = vi.fn().mockResolvedValue({ stopReason: 'natural' });
+    deps.toolFailureCount = vi.fn().mockReturnValue(2);
+
+    const outcome = await executeWorkUnit(deps, makeWu());
+
+    expect(outcome.status).toBe('failed');
+    expect(outcome.reason).toContain('2 tool call(s) failed');
+    expect(outcome.actions).toEqual([]);
+    expect(outcome.touchedSlSources).toEqual([]);
+    expect(deps.resetHardTo).toHaveBeenCalledWith('pre');
+  });
+
   it('runner loop thrown exception resets to the pre-WU SHA and marks WU failed', async () => {
     const deps = makeDeps();
     deps.sessionWorktreeGit.revParseHead = vi.fn().mockResolvedValueOnce('pre').mockResolvedValueOnce('post');

packages/context/src/ingest/stages/stage-3-work-units.ts

@@ -28,6 +28,7 @@ export interface WorkUnitExecutionDeps {
   connectionId: string;
   jobId: string;
   onStepFinish?: (info: { stepIndex: number; stepBudget: number }) => void;
+  toolFailureCount?: (unitKey: string) => number;
 }
 
 export interface WorkUnitOutcome {
@@ -128,6 +129,11 @@ export async function executeWorkUnit(deps: WorkUnitExecutionDeps, wu: WorkUnit)
     return failWithReset(runResult.error?.message ?? 'agent loop errored');
   }
 
+  const toolFailureCount = deps.toolFailureCount?.(wu.unitKey) ?? 0;
+  if (toolFailureCount > 0) {
+    return failWithReset(`${toolFailureCount} tool call(s) failed during WorkUnit ${wu.unitKey}`);
+  }
+
   const touched = listTouchedSlSources(deps.captureSession.touchedSlSources);
   if (touched.length > 0) {
     const validation = await deps.validateTouchedSources(touched);