[Bug] Context window full error at 89% utilization with auto-compact disabled

Bug Description
I'm only at 89% context window (with auto-compact off), but Claude is claiming the window is full and refusing to proceed.

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.104
• Feedback ID: 3555ddf9-0b50-48d7-9beb-45fb406a8b3f

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/Tyler Laprade/.local/share/claude/versions/2.1.104 (expected in multi-process scenarios)\n    at Tc_ (/$bunfs/root/src/entrypoints/cli.js:2836:2153)\n    at Se6 (/$bunfs/root/src/entrypoints/cli.js:2836:1233)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:05:16.379Z"},{"error":"MaxFileReadTokenExceededError: File content (16295 tokens) exceeds maximum allowed tokens (10000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n    at kY7 (/$bunfs/root/src/entrypoints/cli.js:4449:12671)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:07:20.961Z"},{"error":"Error: EISDIR: illegal operation on a directory, read '/Users/Tyler Laprade/Code/condor_21/hanaq/abacus/bricks'\n    at G1H (/$bunfs/root/src/entrypoints/cli.js:3942:15399)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:07:43.862Z"},{"error":"Error: LSP server plugin:basedpyright-lsp:python failed to start: Executable not found in $PATH: \"basedpyright-langserver\"\n    at start (/$bunfs/root/src/entrypoints/cli.js:1633:22341)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:24:50.985Z"},{"error":"Error: Executable not found in $PATH: \"basedpyright-langserver\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/src/entrypoints/cli.js:1633:20877)\n    at w (/$bunfs/root/src/entrypoints/cli.js:1633:24860)\n    at $ (/$bunfs/root/src/entrypoints/cli.js:1633:29932)\n    at w (/$bunfs/root/src/entrypoints/cli.js:1633:30269)\n    at Y (/$bunfs/root/src/entrypoints/cli.js:1633:30815)\n    at call (/$bunfs/root/src/entrypoints/cli.js:2217:1377)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:24:50.985Z"},{"error":"Error: Failed to start LSP server for file /Users/Tyler Laprade/Code/condor_21/hanaq/abacus/bricks/secondary.py: Executable not found in $PATH: \"basedpyright-langserver\"\n    at $ (/$bunfs/root/src/entrypoints/cli.js:1633:29958)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:24:50.986Z"},{"error":"Error: Executable not found in $PATH: \"basedpyright-langserver\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/src/entrypoints/cli.js:1633:20877)\n    at w (/$bunfs/root/src/entrypoints/cli.js:1633:24860)\n    at $ (/$bunfs/root/src/entrypoints/cli.js:1633:29932)\n    at w (/$bunfs/root/src/entrypoints/cli.js:1633:30269)\n    at Y (/$bunfs/root/src/entrypoints/cli.js:1633:30815)\n    at call (/$bunfs/root/src/entrypoints/cli.js:2217:1377)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:24:50.986Z"},{"error":"Error: LSP server plugin:basedpyright-lsp:python failed to start: Executable not found in $PATH: \"basedpyright-langserver\"\n    at start (/$bunfs/root/src/entrypoints/cli.js:1633:22341)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:25:43.875Z"},{"error":"Error: Executable not found in $PATH: \"basedpyright-langserver\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/src/entrypoints/cli.js:1633:20877)\n    at w (/$bunfs/root/src/entrypoints/cli.js:1633:24860)\n    at $ (/$bunfs/root/src/entrypoints/cli.js:1633:29932)\n    at w (/$bunfs/root/src/entrypoints/cli.js:1633:30269)\n    at Y (/$bunfs/root/src/entrypoints/cli.js:1633:30815)\n    at call (/$bunfs/root/src/entrypoints/cli.js:2217:1377)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:25:43.875Z"},{"error":"Error: Failed to start LSP server for file /Users/Tyler Laprade/Code/condor_21/hanaq/abacus/functions/grid_functions/cro_direct_fees_or_passthroughs_recon_grid.py: Executable not found in $PATH: \"basedpyright-langserver\"\n    at $ (/$bunfs/root/src/entrypoints/cli.js:1633:29958)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-13T17:25:43.875Z"},{"error":"Error: Executable not found in $PATH: \"basedpyright-langserver\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/src/entrypoints/cli.js:1633:20877)\n    at w (/$bunfs/root/src/entrypoints/cli.j…

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