mastra-ai/mastra · error · HTTPException

Failed to resolve updated skill

Error message

Failed to resolve updated skill

What it means

This 500 mirrors error 3085 but on the update path: after `skillStore.update(...)` succeeded, `getByIdResolved(storedSkillId)` still returned null so the handler cannot return the resolved updated skill. The update write and the subsequent resolve read disagree, indicating a storage consistency or resolution bug rather than caller error.

Source

Thrown at packages/server/src/server/handlers/stored-skills.ts:483

      if (compatibility !== undefined) update.compatibility = compatibility;
      if (source !== undefined) update.source = source;
      const resolvedReferences = indexedPaths.references ?? references;
      const resolvedScripts = indexedPaths.scripts ?? scripts;
      const resolvedAssets = indexedPaths.assets ?? assets;
      if (resolvedReferences !== undefined) update.references = resolvedReferences;
      if (resolvedScripts !== undefined) update.scripts = resolvedScripts;
      if (resolvedAssets !== undefined) update.assets = resolvedAssets;
      if (files !== undefined) update.files = files;
      if (metadata !== undefined) {
        update.metadata = scopeStoredResourceMetadata({ ...(existing.metadata ?? {}), ...metadata }, scope);
      }

      await skillStore.update(update as Parameters<typeof skillStore.update>[0]);

      // Return the resolved skill with the updated config
      const resolved = await skillStore.getByIdResolved(storedSkillId);
      if (!resolved) {
        throw new HTTPException(500, { message: 'Failed to resolve updated skill' });
      }

      return enrichOrStripFavorites(mastra, requestContext, 'skill', resolved);
    } catch (error) {
      return handleError(error, 'Error updating stored skill');
    }
  },
});

/**
 * DELETE /stored/skills/:storedSkillId - Delete a stored skill
 */
export const DELETE_STORED_SKILL_ROUTE = createRoute({
  method: 'DELETE',
  path: '/stored/skills/:storedSkillId',
  responseType: 'json',
  pathParamSchema: storedSkillIdPathParams,
  responseSchema: deleteStoredSkillResponseSchema,

View on GitHub (pinned to 75dd419e61)

Solutions

1. Re-fetch the skill shortly after; the next read will likely see the committed update
2. Use a strongly consistent storage adapter (single primary reads) for the skills domain
3. Check for concurrent processes deleting the skill and serialize update/delete workflows
4. Audit a custom adapter's `update` and `getByIdResolved` implementations for mismatched expectations

Example fix

// before
await updateSkill(id, patch);
const skill = await getSkill(id); // may 500 right after write
// after
await updateSkill(id, patch);
let skill;
for (let i = 0; i < 3 && !skill; i++) {
  await new Promise(r => setTimeout(r, 200));
  skill = await getSkill(id).catch(() => null);
}

null

null

try {
  await updateStoredSkill(id, patch);
} catch (e) {
  if (String((e as Error).message).includes('Failed to resolve updated skill')) {
    await new Promise(r => setTimeout(r, 300));
    return fetch(`/api/stored-skills/${id}`).then(r => r.json());
  }
  throw e;
}

When it happens

Trigger: An update that effectively removed/deactivated the record while reporting success (adapter bug); read replica serving stale data immediately after the update; concurrent request deleting the skill between `update` and `getByIdResolved`; custom adapter whose `update` doesn't persist all fields `getByIdResolved` needs.

Common situations: Databases with eventual consistency (cached reads); experimental storage adapters; race conditions in scripts performing update+delete on the same skill.

Related errors

• Failed to resolve created MCP client
• Failed to resolve created skill
• AcpAgent does not support resuming suspended generate calls
• AcpAgent does not support resuming suspended stream calls
• ACP prompt stopped before completing: ${response.stopReason}

AI-assisted analysis of mastra-ai/mastra@75dd419e61 (2026-08-30). Data as JSON: /api/errors/5f2729bd5c0255ec. Report an issue: GitHub.