fix: override context window for MiniMax/Kimi free models

[romeoscript]

Enforces a 200k context window for and to prevent aggressive truncation caused by incorrect API limitations.

Context

fixes #5566

Implementation

I resolved the issue by patching the model information parsing logic to manually override the reported context window for the affected free-tier models.

Screenshots

before	after

How to Test

Launch the Extension:
Open the project in VS Code.
Press F5 to start a debug session (or build and install the .vsix).
Select the Model:
Open the extension sidebar.
Go to Settings (gear icon) -> Provider.
Select KiloCode (or OpenRouter).
In the Model dropdown, select either Mini-Max 2.1:free or Kimi 2.5:free.
Verify Context Limits:
Start a chat session.
Look at the Context Window Indicator (the progress bar at the bottom of the chat interface).
Before Fix: The total capacity (right-side number) would show approximately 32k (or roughly 32,768).
After Fix: The total capacity should now display ~200k (specifically 200,000).
Functional Test:
Paste a large amount of text (e.g., >40k tokens) into the chat.
Verify that the "Context Truncated" warning does not appear and the extension sends the full context to the model.

Get in Touch

[changeset-bot]

🦋 Changeset detected

Latest commit: 97f8325

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
kilo-code	Patch

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[kilo-code-bot]

WARNING: Missing test coverage for this new override.

Every other model-specific override in parseOpenRouterModel has a corresponding test in openrouter.spec.ts (e.g., horizon-alpha, horizon-beta, claude-sonnet-4.6). This new context window override for MiniMax/Kimi free models should also have test coverage.

Consider adding tests like:

it("overrides context window for minimax-2.1:free models", () => {
  const mockModel = {
    name: "MiniMax 2.1 Free",
    description: "Test model",
    context_length: 1000000,
    max_completion_tokens: 8192,
    pricing: { prompt: "0", completion: "0" },
  }

  const result = parseOpenRouterModel({
    id: "minimax/minimax-2.1:free",
    model: mockModel,
    inputModality: ["text"],
    outputModality: ["text"],
    maxTokens: 8192,
  })

  expect(result.contextWindow).toBe(200000)
})

And a similar test for kimi-2.5:free.

[kilo-code-bot]

Code Review Summary

Status: 1 Issue Found | Recommendation: Address before merge

Overview

Severity	Count
CRITICAL	0
WARNING	1
SUGGESTION	0

Issue Details (click to expand)

WARNING

File	Line	Issue
src/api/providers/fetchers/openrouter.ts	324	Missing test coverage for new MiniMax/Kimi context window override. Every other override in parseOpenRouterModel has tests in openrouter.spec.ts.

Files Reviewed (2 files)

• .changeset/ten-knives-share.md - 0 issues
• src/api/providers/fetchers/openrouter.ts - 1 issue

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