Unsupported image rejections from text-only compatible providers should not
poison the session, and low-trust multimodal usage spikes should not make
context indicators report a full window.
Constraint: Third-party Anthropic-compatible providers may report encoded media bytes as usage tokens.
Rejected: Trust all provider usage uniformly | third-party media responses can pin context to 100% incorrectly.
Confidence: high
Scope-risk: moderate
Directive: Do not remove the media-aware fallback without checking text-only provider recovery and desktop context indicators.
Tested: bun run check:server
Tested: focused media/context regression suite
ChatGPT Official runs through Codex OAuth, so context accounting should follow
the Codex model catalog and its effective context window instead of public API
limits. This keeps GPT-5.5 at the same usable window shown by Codex while
preserving GPT-5.4's larger Codex window.
Constraint: Codex OAuth model metadata applies effective_context_window_percent to raw catalog windows
Rejected: Use public API GPT-5.5 1.05M context | Codex app and OAuth runtime clamp this model to the smaller effective window
Confidence: high
Scope-risk: narrow
Directive: Keep ChatGPT Official context values aligned to Codex model catalog behavior, not generic OpenAI API docs
Tested: bun test src/services/openaiAuth/models.test.ts src/services/compact/autoCompact.test.ts src/server/__tests__/providers.test.ts
Tested: bun run check:server
Tested: git diff --check
Not-tested: Manual desktop screenshot after rebuilding the app
Providers like DeepSeek with 1M context windows can report
input_tokens that, when combined with output_tokens, exceed the
declared context window — causing the UI to show >100% usage.
Add an optional contextWindow parameter to calculateCurrentContextTokenTotal
that clamps the result to the window size. Pass it from analyzeContext
and sessionService where the window size is already available.
Backward compatible: callers that omit the parameter keep existing behavior.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Context inspection was switching from the local context estimate to the latest
provider usage total once a response completed. That provider total omitted the
assistant output tokens, even though those tokens become part of the next turn's
context, so the desktop meter could fall from 11% to 10% after work finished.
The context total now includes output tokens and keeps the local estimate as a
lower bound.
Constraint: Provider usage and local context estimates use different token accounting paths
Rejected: Trust provider input tokens alone | it omits the latest assistant output from the next-turn context
Confidence: high
Scope-risk: narrow
Directive: Context usage totals must represent the next-turn conversation context, not billing-only input tokens
Tested: bun test src/utils/__tests__/context.test.ts
Tested: bun run check:server
Remote main already contains PR #217. Local main had provider context-window and auth-strategy work, so this merge keeps both context resolvers and reconciles the desktop Bun lockfile with the merged desktop package manifest. The accidental remote .nvimlog artifact is excluded from the merge result.
Constraint: Local main was 15 commits ahead and 8 commits behind origin/main after PR #217 was merged remotely
Rejected: Fast-forward pull | local main had unpushed commits
Rejected: Keep remote desktop lockfile verbatim | failed bun install --frozen-lockfile against the merged package.json
Confidence: high
Scope-risk: broad
Directive: Keep provider-configured context windows ahead of OpenAI OAuth model windows so explicit user/provider settings win
Tested: bun install --frozen-lockfile; cd desktop && bun install --frozen-lockfile; git diff --check; bun run check:server; bun run check:desktop; ALLOW_CLI_CORE_CHANGE=1 bun run quality:pr
Not-tested: live provider OAuth login with a real OpenAI account
Teach provider presets and saved providers to carry per-model context windows so auto-compact uses provider-specific limits instead of a blanket fallback. The desktop provider form now keeps these limits in an advanced context section and syncs the generated settings preview with model changes.
Constraint: Third-party provider APIs do not consistently expose machine-readable model context windows.
Rejected: Keep a single 100K/200K fallback | modern provider windows vary from 128K to 1M+ and the fallback caused late or early compaction.
Confidence: high
Scope-risk: moderate
Directive: Do not change provider compact thresholds without re-running real provider long-context checks.
Tested: bun test src/services/compact/autoCompact.test.ts; bun test src/server/__tests__/provider-presets.test.ts src/server/__tests__/providers.test.ts src/server/__tests__/providers-real.test.ts; bun run check:server; bun run check:desktop; bun run check:policy; bun run check:native; MiniMax/Kimi/DeepSeek live long-context probes; agent-browser provider form flow.
Not-tested: quality:pr policy gate still requires explicit allow-cli-core-change for CLI core edits.
