refactor: remove orphaned compaction-context-injector hook

Hook was disconnected from plugin flow since commit 4a82ff40.
Never called at runtime, superseded by preemptive-compaction hook.

src/hooks/compaction-context-injector/index.test.ts

@@ -1,102 +0,0 @@
-import { describe, expect, it, mock, beforeEach } from "bun:test"
-
-// Mock dependencies before importing
-const mockInjectHookMessage = mock(() => true)
-mock.module("../../features/hook-message-injector", () => ({
-  injectHookMessage: mockInjectHookMessage,
-}))
-
-mock.module("../../shared/logger", () => ({
-  log: () => {},
-}))
-
-mock.module("../../shared/system-directive", () => ({
-  createSystemDirective: (type: string) => `[DIRECTIVE:${type}]`,
-  SystemDirectiveTypes: {
-    TODO_CONTINUATION: "TODO CONTINUATION",
-    RALPH_LOOP: "RALPH LOOP",
-    BOULDER_CONTINUATION: "BOULDER CONTINUATION",
-    DELEGATION_REQUIRED: "DELEGATION REQUIRED",
-    SINGLE_TASK_ONLY: "SINGLE TASK ONLY",
-    COMPACTION_CONTEXT: "COMPACTION CONTEXT",
-    CONTEXT_WINDOW_MONITOR: "CONTEXT WINDOW MONITOR",
-    PROMETHEUS_READ_ONLY: "PROMETHEUS READ-ONLY",
-  },
-}))
-
-import { createCompactionContextInjector } from "./index"
-import type { SummarizeContext } from "./index"
-
-describe("createCompactionContextInjector", () => {
-  beforeEach(() => {
-    mockInjectHookMessage.mockClear()
-  })
-
-  describe("Agent Verification State preservation", () => {
-    it("includes Agent Verification State section in compaction prompt", async () => {
-      // given
-      const injector = createCompactionContextInjector()
-      const context: SummarizeContext = {
-        sessionID: "test-session",
-        providerID: "anthropic",
-        modelID: "claude-sonnet-4-5",
-        usageRatio: 0.85,
-        directory: "/test/dir",
-      }
-
-      // when
-      await injector(context)
-
-      // then
-      expect(mockInjectHookMessage).toHaveBeenCalledTimes(1)
-      const calls = mockInjectHookMessage.mock.calls as unknown as [string, string, unknown][]
-      const injectedPrompt = calls[0]?.[1] ?? ""
-      expect(injectedPrompt).toContain("Agent Verification State")
-      expect(injectedPrompt).toContain("Current Agent")
-      expect(injectedPrompt).toContain("Verification Progress")
-    })
-
-    it("includes Momus-specific context for reviewer agents", async () => {
-      // given
-      const injector = createCompactionContextInjector()
-      const context: SummarizeContext = {
-        sessionID: "test-session",
-        providerID: "anthropic",
-        modelID: "claude-sonnet-4-5",
-        usageRatio: 0.9,
-        directory: "/test/dir",
-      }
-
-      // when
-      await injector(context)
-
-      // then
-      const calls = mockInjectHookMessage.mock.calls as unknown as [string, string, unknown][]
-      const injectedPrompt = calls[0]?.[1] ?? ""
-      expect(injectedPrompt).toContain("Previous Rejections")
-      expect(injectedPrompt).toContain("Acceptance Status")
-      expect(injectedPrompt).toContain("reviewer agents")
-    })
-
-    it("preserves file verification progress in compaction prompt", async () => {
-      // given
-      const injector = createCompactionContextInjector()
-      const context: SummarizeContext = {
-        sessionID: "test-session",
-        providerID: "anthropic",
-        modelID: "claude-sonnet-4-5",
-        usageRatio: 0.95,
-        directory: "/test/dir",
-      }
-
-      // when
-      await injector(context)
-
-      // then
-      const calls = mockInjectHookMessage.mock.calls as unknown as [string, string, unknown][]
-      const injectedPrompt = calls[0]?.[1] ?? ""
-      expect(injectedPrompt).toContain("Pending Verifications")
-      expect(injectedPrompt).toContain("Files already verified")
-    })
-  })
-})

src/hooks/compaction-context-injector/index.ts

@@ -1,76 +0,0 @@
-import { injectHookMessage } from "../../features/hook-message-injector"
-import { log } from "../../shared/logger"
-import { createSystemDirective, SystemDirectiveTypes } from "../../shared/system-directive"
-
-export interface SummarizeContext {
-  sessionID: string
-  providerID: string
-  modelID: string
-  usageRatio: number
-  directory: string
-}
-
-const SUMMARIZE_CONTEXT_PROMPT = `${createSystemDirective(SystemDirectiveTypes.COMPACTION_CONTEXT)}
-
-When summarizing this session, you MUST include the following sections in your summary:
-
-## 1. User Requests (As-Is)
-- List all original user requests exactly as they were stated
-- Preserve the user's exact wording and intent
-
-## 2. Final Goal
-- What the user ultimately wanted to achieve
-- The end result or deliverable expected
-
-## 3. Work Completed
-- What has been done so far
-- Files created/modified
-- Features implemented
-- Problems solved
-
-## 4. Remaining Tasks
-- What still needs to be done
-- Pending items from the original request
-- Follow-up tasks identified during the work
-
-## 5. Active Working Context (For Seamless Continuation)
-- **Files**: Paths of files currently being edited or frequently referenced
-- **Code in Progress**: Key code snippets, function signatures, or data structures under active development
-- **External References**: Documentation URLs, library APIs, or external resources being consulted
-- **State & Variables**: Important variable names, configuration values, or runtime state relevant to ongoing work
-
-## 6. MUST NOT Do (Critical Constraints)
-- Things that were explicitly forbidden
-- Approaches that failed and should not be retried
-- User's explicit restrictions or preferences
-- Anti-patterns identified during the session
-
-## 7. Agent Verification State (Critical for Reviewers)
-- **Current Agent**: What agent is running (momus, oracle, etc.)
-- **Verification Progress**: Files already verified/validated
-- **Pending Verifications**: Files still needing verification
-- **Previous Rejections**: If reviewer agent, what was rejected and why
-- **Acceptance Status**: Current state of review process
-
-This section is CRITICAL for reviewer agents (momus, oracle) to maintain continuity.
-
-This context is critical for maintaining continuity after compaction.
-`
-
-export function createCompactionContextInjector() {
-  return async (ctx: SummarizeContext): Promise<void> => {
-    log("[compaction-context-injector] injecting context", { sessionID: ctx.sessionID })
-
-    const success = injectHookMessage(ctx.sessionID, SUMMARIZE_CONTEXT_PROMPT, {
-      agent: "general",
-      model: { providerID: ctx.providerID, modelID: ctx.modelID },
-      path: { cwd: ctx.directory },
-    })
-
-    if (success) {
-      log("[compaction-context-injector] context injected", { sessionID: ctx.sessionID })
-    } else {
-      log("[compaction-context-injector] injection failed", { sessionID: ctx.sessionID })
-    }
-  }
-}

src/hooks/index.ts

@@ -9,7 +9,6 @@ export { createDirectoryReadmeInjectorHook } from "./directory-readme-injector";
 export { createEmptyTaskResponseDetectorHook } from "./empty-task-response-detector";
 export { createAnthropicContextWindowLimitRecoveryHook, type AnthropicContextWindowLimitRecoveryOptions } from "./anthropic-context-window-limit-recovery";
 
-export { createCompactionContextInjector } from "./compaction-context-injector";
 export { createThinkModeHook } from "./think-mode";
 export { createClaudeCodeHooksHook } from "./claude-code-hooks";
 export { createRulesInjectorHook } from "./rules-injector";