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PDF Tool Use Failure: Missing Tool Result Blocks #5450

@testacode

Description

@testacode

Bug Description
My instance of Claude Code is not able to use tools to read pdfs: I'll analyze these expense documents to understand the real-world structure and ensure our system captures
all necessary information. Let me review all four PDFs.

⏺ Read(../../../Downloads/05-2025 gastos.pdf)
⎿  Read PDF (132.3KB)

⏺ Read(../../../Downloads/05-2025 prorrateo.pdf)
⎿  Read PDF (173.6KB)

⏺ Read(../../../Downloads/resumen.pdf)
⎿  Read PDF (1.4MB)

⏺ Read(../../../Downloads/cupon.pdf)
⎿  Read PDF (76.7KB)
⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.2: tool_use
ids were found without tool_result blocks immediately after: toolu_01FCH49ioQnBrfftPQx5k1ZQ,
toolu_01NeL74QdYMQm8DFGz5Pxj3A, toolu_01XirfUjk9RBjbf7UYmQEQPF. Each tool_use block must have a
corresponding tool_result block in the next message."}}

Environment Info

  • Platform: darwin
  • Terminal: iTerm.app
  • Version: 1.0.72
  • Feedback ID: 4d022565-35cf-49b6-b5b5-18c851762c62

Errors

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.2: `tool_use` ids were found without `tool_result` blocks immediately after: toolu_01FCH49ioQnBrfftPQx5k1ZQ, toolu_01NeL74QdYMQm8DFGz5Pxj3A, toolu_01XirfUjk9RBjbf7UYmQEQPF. Each `tool_use` block must have a corresponding `tool_result` block in the next message.\"}}\n    at Q6.generate (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:933:2303)\n    at uP.makeStatusError (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:950:2101)\n    at uP.makeRequest (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:950:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async RRB.rZ1.showErrors (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1743:24594)\n    at async rZ1 (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1743:13631)\n    at async RRB (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1743:24445)\n    at async file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1743:19427\n    at async Iq0 (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1743:5163)\n    at async P11 (file:///Users/carlosmonti/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1743:19397)","timestamp":"2025-08-09T15:10:02.190Z"}]
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