Missing Tool Result Block for Tool Use ID toolu_01AbmHJypDhKqBF7NKdRPJ6d

Resolved 💬 2 comments Opened Aug 3, 2025 by umersai Closed Aug 8, 2025

Bug Description
API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.6: tool_use ids were found without tool_result blocks
immediately after: toolu_01AbmHJypDhKqBF7NKdRPJ6d. Each tool_use block must have a corresponding tool_result block in the next message."}}

Environment Info

  • Platform: darwin
  • Terminal: Apple_Terminal
  • Version: 1.0.62
  • Feedback ID: f220fea8-bfd9-4661-900c-0e5c70a71ce5

Errors

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.6: `tool_use` ids were found without `tool_result` blocks immediately after: toolu_01AbmHJypDhKqBF7NKdRPJ6d. Each `tool_use` block must have a corresponding `tool_result` block in the next message.\"}}\n    at n4.generate (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1317:12488)\n    at GP.makeStatusError (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1334:2101)\n    at GP.makeRequest (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1334:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async OvB.bG1.showErrors (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:14365)\n    at async bG1 (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2368:5642)\n    at async OvB (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:14216)\n    at async file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:9271\n    at async hL0 (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:1690)\n    at async re (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:9241)","timestamp":"2025-08-03T22:10:17.654Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.6: `tool_use` ids were found without `tool_result` blocks immediately after: toolu_01AbmHJypDhKqBF7NKdRPJ6d. Each `tool_use` block must have a corresponding `tool_result` block in the next message.\"}}\n    at n4.generate (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1317:12488)\n    at GP.makeStatusError (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1334:2101)\n    at GP.makeRequest (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1334:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async OvB.bG1.showErrors (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:14365)\n    at async bG1 (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2368:5642)\n    at async OvB (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:14216)\n    at async file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:9271\n    at async hL0 (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:1690)\n    at async re (file:///Users/umer/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2907:9241)","timestamp":"2025-08-03T22:11:20.114Z"}]

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