[Bug] Agent unable to read PDF schematics and technical documentation

Bug Description
I tried many different ways to reada technical pdf document and even a screenshot of it, but the agent can't read the schema like https://www.st.com/resource/en/schematic_pack/mb1363-h7a3ziq-d01_schematic.pdf or https://www.st.com/resource/en/user_manual/um2408-stm32h7-nucleo144-boards-mb1363-stmicroelectronics.pdf

Environment Info

• Platform: linux
• Terminal: vscode
• Version: 2.1.39
• Feedback ID: 0aa322d0-bb30-4432-807c-cec1f6aa3fe3

Errors

[{"error":"Error: EISDIR: illegal operation on a directory, read\n    at readSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:997)\n    at DF (/$bunfs/root/claude:11:49917)\n    at readSync (/$bunfs/root/claude:12:875)\n    at fF (/$bunfs/root/claude:6130:113)\n    at KJ (/$bunfs/root/claude:6132:226)\n    at Ay1 (/$bunfs/root/claude:7316:7821)\n    at X (/$bunfs/root/claude:7316:7026)\n    at <anonymous> (/$bunfs/root/claude:7316:7355)\n    at iA (/$bunfs/root/claude:675:62582)","timestamp":"2026-02-12T19:18:29.756Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at readFileSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:742)\n    at DF (/$bunfs/root/claude:11:49917)\n    at readFileSync (/$bunfs/root/claude:12:701)\n    at KJ (/$bunfs/root/claude:6132:251)\n    at Ay1 (/$bunfs/root/claude:7316:7821)\n    at X (/$bunfs/root/claude:7316:7026)\n    at <anonymous> (/$bunfs/root/claude:7316:7355)\n    at iA (/$bunfs/root/claude:675:62582)\n    at E9 (/$bunfs/root/claude:675:75523)","timestamp":"2026-02-12T19:18:29.758Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at readSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:997)\n    at DF (/$bunfs/root/claude:11:49917)\n    at readSync (/$bunfs/root/claude:12:875)\n    at fF (/$bunfs/root/claude:6130:113)\n    at KJ (/$bunfs/root/claude:6132:226)\n    at Ay1 (/$bunfs/root/claude:7316:7821)\n    at X (/$bunfs/root/claude:7316:7026)\n    at <anonymous> (/$bunfs/root/claude:7316:7355)\n    at iA (/$bunfs/root/claude:675:62582)","timestamp":"2026-02-12T20:01:43.468Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at readFileSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:742)\n    at DF (/$bunfs/root/claude:11:49917)\n    at readFileSync (/$bunfs/root/claude:12:701)\n    at KJ (/$bunfs/root/claude:6132:251)\n    at Ay1 (/$bunfs/root/claude:7316:7821)\n    at X (/$bunfs/root/claude:7316:7026)\n    at <anonymous> (/$bunfs/root/claude:7316:7355)\n    at iA (/$bunfs/root/claude:675:62582)\n    at E9 (/$bunfs/root/claude:675:75523)","timestamp":"2026-02-12T20:01:43.469Z"}]