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daniel-lxsdaniel-lxs
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fix: address PR review comments
- Improved type safety by using Record<string, any> instead of direct any casts - Enhanced Anthropic error detection with message pattern matching - Added comprehensive unit tests for context-error-handling module - Added named constant FORCED_CONTEXT_REDUCTION_PERCENT - Added MAX_CONTEXT_WINDOW_RETRIES limit to prevent infinite loops - Added logging for context window exceeded errors - Extracted getCurrentProfileId helper method to reduce duplication - All tests passing (3438 tests)
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3 files changed

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‎src/core/context/context-management/__tests__/context-error-handling.test.ts‎

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@@ -0,0 +1,316 @@
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import { describe, it, expect } from "vitest"
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import { APIError } from "openai"
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import { checkContextWindowExceededError } from "../context-error-handling"
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describe("checkContextWindowExceededError", () => {
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describe("OpenAI errors", () => {
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it("should detect OpenAI context length exceeded error", () => {
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const error = new APIError(
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400,
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{
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error: {
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message: "This model's maximum context length is 4096 tokens",
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type: "invalid_request_error",
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param: null,
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code: "context_length_exceeded",
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},
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},
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"This model's maximum context length is 4096 tokens",
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undefined as any,
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)
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expect(checkContextWindowExceededError(error)).toBe(true)
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})
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it("should detect OpenAI token limit error", () => {
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const error = new APIError(
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400,
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{
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error: {
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message: "Request exceeded token limit",
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type: "invalid_request_error",
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param: null,
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code: null,
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},
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},
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"Request exceeded token limit",
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undefined as any,
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)
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expect(checkContextWindowExceededError(error)).toBe(true)
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})
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it("should detect LengthFinishReasonError", () => {
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const error = {
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name: "LengthFinishReasonError",
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message: "The response was cut off due to length",
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}
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expect(checkContextWindowExceededError(error)).toBe(true)
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})
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it("should not detect non-context OpenAI errors", () => {
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const error = new APIError(
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401,
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{
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error: {
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message: "Invalid API key",
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type: "authentication_error",
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param: null,
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code: null,
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},
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},
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"Invalid API key",
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undefined as any,
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)
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expect(checkContextWindowExceededError(error)).toBe(false)
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})
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})
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describe("OpenRouter errors", () => {
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it("should detect OpenRouter context window error", () => {
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const error = {
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status: 400,
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message: "Context window exceeded for this request",
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}
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expect(checkContextWindowExceededError(error)).toBe(true)
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})
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it("should detect OpenRouter maximum context error", () => {
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const error = {
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code: 400,
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error: {
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message: "Maximum context length reached",
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},
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}
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expect(checkContextWindowExceededError(error)).toBe(true)
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})
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it("should detect OpenRouter too many tokens error", () => {
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const error = {
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response: {
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status: 400,
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},
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message: "Too many tokens in the request",
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}
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expect(checkContextWindowExceededError(error)).toBe(true)
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})
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it("should not detect non-context OpenRouter errors", () => {
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const error = {
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status: 400,
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message: "Invalid request format",
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}
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expect(checkContextWindowExceededError(error)).toBe(false)
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})
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})
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describe("Anthropic errors", () => {
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it("should detect Anthropic prompt too long error", () => {
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const response = {
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error: {
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error: {
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type: "invalid_request_error",
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message: "prompt is too long: 150000 tokens > 100000 maximum",
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},
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},
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}
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expect(checkContextWindowExceededError(response)).toBe(true)
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})
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it("should detect Anthropic maximum tokens error", () => {
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const response = {
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error: {
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error: {
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type: "invalid_request_error",
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message: "Request exceeds maximum tokens allowed",
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},
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},
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}
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expect(checkContextWindowExceededError(response)).toBe(true)
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})
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it("should detect Anthropic context too long error", () => {
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const response = {
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error: {
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error: {
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type: "invalid_request_error",
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message: "The context is too long for this model",
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},
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},
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}
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expect(checkContextWindowExceededError(response)).toBe(true)
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})
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it("should detect Anthropic token limit error", () => {
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const response = {
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error: {
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error: {
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type: "invalid_request_error",
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message: "Your request has hit the token limit",
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},
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},
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}
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expect(checkContextWindowExceededError(response)).toBe(true)
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})
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it("should not detect non-context Anthropic errors", () => {
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const response = {
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error: {
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error: {
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type: "invalid_request_error",
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message: "Invalid API key provided",
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},
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},
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}
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expect(checkContextWindowExceededError(response)).toBe(false)
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})
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it("should not detect other Anthropic error types", () => {
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const response = {
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error: {
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error: {
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type: "rate_limit_error",
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message: "Rate limit exceeded",
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},
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},
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}
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expect(checkContextWindowExceededError(response)).toBe(false)
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})
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})
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describe("Cerebras errors", () => {
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it("should detect Cerebras context window error", () => {
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const response = {
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status: 400,
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message: "Please reduce the length of the messages or completion",
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}
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expect(checkContextWindowExceededError(response)).toBe(true)
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})
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it("should detect Cerebras error with nested structure", () => {
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const response = {
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error: {
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status: 400,
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message: "Please reduce the length of the messages or completion",
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},
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}
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expect(checkContextWindowExceededError(response)).toBe(true)
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})
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it("should not detect non-context Cerebras errors", () => {
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const response = {
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status: 400,
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message: "Invalid request parameters",
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}
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expect(checkContextWindowExceededError(response)).toBe(false)
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})
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it("should not detect Cerebras errors with different status codes", () => {
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const response = {
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status: 500,
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message: "Please reduce the length of the messages or completion",
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}
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expect(checkContextWindowExceededError(response)).toBe(false)
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})
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})
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describe("Edge cases", () => {
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it("should handle null input", () => {
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expect(checkContextWindowExceededError(null)).toBe(false)
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})
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it("should handle undefined input", () => {
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expect(checkContextWindowExceededError(undefined)).toBe(false)
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})
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it("should handle empty object", () => {
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expect(checkContextWindowExceededError({})).toBe(false)
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})
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it("should handle string input", () => {
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expect(checkContextWindowExceededError("error")).toBe(false)
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})
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it("should handle number input", () => {
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expect(checkContextWindowExceededError(123)).toBe(false)
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})
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it("should handle boolean input", () => {
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expect(checkContextWindowExceededError(true)).toBe(false)
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})
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it("should handle array input", () => {
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expect(checkContextWindowExceededError([])).toBe(false)
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})
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it("should handle errors with circular references", () => {
245+
const error: any = { status: 400, message: "context window exceeded" }
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error.self = error // Create circular reference
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expect(checkContextWindowExceededError(error)).toBe(true)
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})
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it("should handle errors that throw during property access", () => {
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const error = {
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get status() {
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throw new Error("Property access error")
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},
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message: "Some error",
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}
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expect(checkContextWindowExceededError(error)).toBe(false)
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})
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it("should handle deeply nested error structures", () => {
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const error = {
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response: {
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data: {
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error: {
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status: 400,
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message: "Context length exceeded",
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},
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},
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},
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}
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// This should work because we check response.status
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const errorWithResponseStatus = {
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response: {
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status: 400,
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},
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message: "Context length exceeded",
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}
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expect(checkContextWindowExceededError(errorWithResponseStatus)).toBe(true)
279+
})
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})
281+
282+
describe("Multiple provider detection", () => {
283+
it("should detect errors from any supported provider", () => {
284+
// OpenAI APIError needs specific structure
285+
const openAIError = new APIError(
286+
400,
287+
{ error: { message: "context length exceeded" } },
288+
"context length exceeded",
289+
undefined as any,
290+
)
291+
// Set the code property which is checked by the implementation
292+
;(openAIError as any).code = "400"
293+
const anthropicError = {
294+
error: {
295+
error: {
296+
type: "invalid_request_error",
297+
message: "prompt is too long",
298+
},
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},
300+
}
301+
const cerebrasError = {
302+
status: 400,
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message: "Please reduce the length of the messages or completion",
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}
305+
const openRouterError = {
306+
code: 400,
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message: "maximum context reached",
308+
}
309+
310+
expect(checkContextWindowExceededError(openAIError)).toBe(true)
311+
expect(checkContextWindowExceededError(anthropicError)).toBe(true)
312+
expect(checkContextWindowExceededError(cerebrasError)).toBe(true)
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expect(checkContextWindowExceededError(openRouterError)).toBe(true)
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})
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})
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})

‎src/core/context/context-management/context-error-handling.ts‎

Lines changed: 45 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -9,10 +9,16 @@ export function checkContextWindowExceededError(error: unknown): boolean {
99
)
1010
}
1111

12-
function checkIsOpenRouterContextWindowError(error: any): boolean {
12+
function checkIsOpenRouterContextWindowError(error: unknown): boolean {
1313
try {
14-
const status = error?.status ?? error?.code ?? error?.error?.status ?? error?.response?.status
15-
const message: string = String(error?.message || error?.error?.message || "")
14+
if (!error || typeof error !== "object") {
15+
return false
16+
}
17+
18+
// Use Record<string, any> for proper type narrowing
19+
const err = error as Record<string, any>
20+
const status = err.status ?? err.code ?? err.error?.status ?? err.response?.status
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const message: string = String(err.message || err.error?.message || "")
1622

1723
// Known OpenAI/OpenRouter-style signal (code 400 and message includes "context length")
1824
const CONTEXT_ERROR_PATTERNS = [
@@ -49,18 +55,49 @@ function checkIsOpenAIContextWindowError(error: unknown): boolean {
4955
}
5056
}
5157

52-
function checkIsAnthropicContextWindowError(response: any): boolean {
58+
function checkIsAnthropicContextWindowError(response: unknown): boolean {
5359
try {
54-
return response?.error?.error?.type === "invalid_request_error"
60+
// Type guard to safely access properties
61+
if (!response || typeof response !== "object") {
62+
return false
63+
}
64+
65+
// Use type assertions with proper checks
66+
const res = response as Record<string, any>
67+
68+
// Check for Anthropic-specific error structure
69+
if (res.error?.error?.type === "invalid_request_error") {
70+
const message: string = String(res.error?.error?.message || "")
71+
72+
// Check if the message indicates a context window issue
73+
const contextWindowPatterns = [
74+
/prompt is too long/i,
75+
/maximum.*tokens/i,
76+
/context.*too.*long/i,
77+
/exceeds.*context/i,
78+
/token.*limit/i,
79+
]
80+
81+
return contextWindowPatterns.some((pattern) => pattern.test(message))
82+
}
83+
84+
return false
5585
} catch {
5686
return false
5787
}
5888
}
5989

60-
function checkIsCerebrasContextWindowError(response: any): boolean {
90+
function checkIsCerebrasContextWindowError(response: unknown): boolean {
6191
try {
62-
const status = response?.status ?? response?.code ?? response?.error?.status ?? response?.response?.status
63-
const message: string = String(response?.message || response?.error?.message || "")
92+
// Type guard to safely access properties
93+
if (!response || typeof response !== "object") {
94+
return false
95+
}
96+
97+
// Use type assertions with proper checks
98+
const res = response as Record<string, any>
99+
const status = res.status ?? res.code ?? res.error?.status ?? res.response?.status
100+
const message: string = String(res.message || res.error?.message || "")
64101

65102
return String(status) === "400" && message.includes("Please reduce the length of the messages or completion")
66103
} catch {

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