[Bug] Context window display mismatch between header and /model command

Bug Description
the header is scary! it says im using 1M context; but the /model tool says im on default not 1M. ▗ ▗ ▖ ▖ Claude Code v2.1.71
Opus 4.6 (1M context) · Claude Team -- what's going on here. see attached screenshot

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.71
• Feedback ID: f53b2cf6-a668-45b5-8f3f-1355ec6c36c2

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/egoldstein/.local/share/claude/versions/2.1.71 (expected in multi-process scenarios)\n    at Xxq (/$bunfs/root/src/entrypoints/cli.js:2603:2066)\n    at zU8 (/$bunfs/root/src/entrypoints/cli.js:2603:1210)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-09T21:38:47.984Z"},{"error":"Error: Tool mcp__linear-server__get_user not found\n    at mZ7 (/$bunfs/root/src/entrypoints/cli.js:2501:11611)\n    at NO (/$bunfs/root/src/entrypoints/cli.js:564:20908)\n    at H3 (/$bunfs/root/src/entrypoints/cli.js:564:39422)\n    at Fc (/$bunfs/root/src/entrypoints/cli.js:564:50102)\n    at A4 (/$bunfs/root/src/entrypoints/cli.js:564:86674)\n    at q6 (/$bunfs/root/src/entrypoints/cli.js:564:85649)\n    at i6 (/$bunfs/root/src/entrypoints/cli.js:564:85473)\n    at NC (/$bunfs/root/src/entrypoints/cli.js:564:81874)\n    at Zq (/$bunfs/root/src/entrypoints/cli.js:564:6454)\n    at v_ (/$bunfs/root/src/entrypoints/cli.js:564:4945)","timestamp":"2026-03-09T21:38:48.887Z"},{"error":"Error: Tool mcp__linear-server__get_user not found\n    at mZ7 (/$bunfs/root/src/entrypoints/cli.js:2501:11611)\n    at NO (/$bunfs/root/src/entrypoints/cli.js:564:20908)\n    at H3 (/$bunfs/root/src/entrypoints/cli.js:564:39422)\n    at Fc (/$bunfs/root/src/entrypoints/cli.js:564:50102)\n    at A4 (/$bunfs/root/src/entrypoints/cli.js:564:86674)\n    at q6 (/$bunfs/root/src/entrypoints/cli.js:564:85649)\n    at i6 (/$bunfs/root/src/entrypoints/cli.js:564:85473)\n    at NC (/$bunfs/root/src/entrypoints/cli.js:564:81874)\n    at Zq (/$bunfs/root/src/entrypoints/cli.js:564:6454)\n    at v_ (/$bunfs/root/src/entrypoints/cli.js:564:4945)","timestamp":"2026-03-09T21:38:48.887Z"},{"error":"Error\n    at _p (/$bunfs/root/src/entrypoints/cli.js:82:1144)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:83:10015)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:85:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-09T21:46:17.741Z"},{"error":"Error\n    at _p (/$bunfs/root/src/entrypoints/cli.js:82:1144)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:83:10015)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:85:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-09T21:46:32.638Z"},{"error":"Error\n    at _p (/$bunfs/root/src/entrypoints/cli.js:82:1144)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:83:10015)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:85:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-09T21:46:36.230Z"},{"error":"Error\n    at _p (/$bunfs/root/src/entrypoints/cli.js:82:1144)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:83:10015)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:85:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-09T21:46:47.999Z"},{"error":"Error: File does not exist. Note: your current working directory is /Users/egoldstein/code/src/github.com/luma-core6.\n    at call (/$bunfs/root/src/entrypoints/cli.js:1461:5976)\n    at async pTA (/$bunfs/root/src/entrypoints/cli.js:3904:14884)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-09T21:55:24.412Z"},{"error":"Error: Failed to fetch version from https://storage.googleapis.com/claude-code-dist-86c565f3-f756-42ad-8dfa-d59b1c096819/claude-code-releases/latest: ECONNREFUSED\n    at FQ$ (/$bunfs/root/src/entrypoints/cli.js:2601:2074)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-10T00:41:34.199Z"},{"error":"Error: Failed to fetch version from https://storage.googleapis.com/claude-code-dist-86c565f3-f756-42ad-8dfa-d59b1c096819/claude-code-releases/latest: ECONNREFUSED\n    at FQ$ (/$bunfs/root/src/entrypoints/cli.js:26…

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