feat(workspace): point planning guardrails at omo

src/hooks/atlas/final-wave-approval-gate-regression.test.ts

@@ -113,7 +113,7 @@ describe("Atlas final-wave approval gate regressions", () => {
 
   beforeEach(() => {
     testDirectory = join(tmpdir(), `atlas-final-wave-regression-${randomUUID()}`)
-    mkdirSync(join(testDirectory, ".sisyphus"), { recursive: true })
+    mkdirSync(join(testDirectory, ".omo"), { recursive: true })
     clearBoulderState(testDirectory)
   })
 

src/hooks/atlas/final-wave-approval-gate.test.ts

@@ -66,7 +66,7 @@ describe("Atlas final verification approval gate", () => {
 
   beforeEach(() => {
     testDirectory = join(tmpdir(), `atlas-final-wave-test-${randomUUID()}`)
-    mkdirSync(join(testDirectory, ".sisyphus"), { recursive: true })
+    mkdirSync(join(testDirectory, ".omo"), { recursive: true })
     clearBoulderState(testDirectory)
   })
 

src/hooks/atlas/index.test.ts

@@ -25,7 +25,7 @@ type MockAtlasInput = Parameters<typeof createAtlasHook>[0] & {
 
 describe("atlas hook", () => {
   let TEST_DIR: string
-  let SISYPHUS_DIR: string
+  let OMO_DIR: string
 
   function createMockPluginInput(overrides?: {
     promptMock?: ReturnType<typeof mock>
@@ -81,12 +81,12 @@ describe("atlas hook", () => {
     registerAgentName("atlas")
     registerAgentName("sisyphus")
     TEST_DIR = join(tmpdir(), `atlas-test-${randomUUID()}`)
-    SISYPHUS_DIR = join(TEST_DIR, ".sisyphus")
+    OMO_DIR = join(TEST_DIR, ".omo")
     if (!existsSync(TEST_DIR)) {
       mkdirSync(TEST_DIR, { recursive: true })
     }
-    if (!existsSync(SISYPHUS_DIR)) {
-      mkdirSync(SISYPHUS_DIR, { recursive: true })
+    if (!existsSync(OMO_DIR)) {
+      mkdirSync(OMO_DIR, { recursive: true })
     }
     clearBoulderState(TEST_DIR)
     callerAgentBySession.clear()
@@ -1082,7 +1082,7 @@ session_id: ses_untrusted_999
         cleanupMessageStorage(ORCHESTRATOR_SESSION)
       })
 
-      test("should append delegation reminder when orchestrator writes outside .sisyphus/", async () => {
+      test("should append delegation reminder when orchestrator writes outside .omo/", async () => {
         // given
         const hook = createTestAtlasHook(createMockPluginInput())
         const output = {
@@ -1103,7 +1103,7 @@ session_id: ses_untrusted_999
         expect(output.output).toContain("task")
       })
 
-      test("should append delegation reminder when orchestrator edits outside .sisyphus/", async () => {
+      test("should append delegation reminder when orchestrator edits outside .omo/", async () => {
         // given
         const hook = createTestAtlasHook(createMockPluginInput())
         const output = {
@@ -1122,14 +1122,14 @@ session_id: ses_untrusted_999
         expect(output.output).toContain("DELEGATION REQUIRED")
       })
 
-      test("should NOT append reminder when orchestrator writes inside .sisyphus/", async () => {
+      test("should NOT append reminder when orchestrator writes inside .omo/", async () => {
         // given
         const hook = createTestAtlasHook(createMockPluginInput())
         const originalOutput = "File written successfully"
         const output = {
           title: "Write",
           output: originalOutput,
-          metadata: { filePath: "/project/.sisyphus/plans/work-plan.md" },
+          metadata: { filePath: "/project/.omo/plans/work-plan.md" },
         }
 
         // when
@@ -1143,7 +1143,7 @@ session_id: ses_untrusted_999
         expect(output.output).not.toContain("DELEGATION REQUIRED")
       })
 
-      test("should NOT append reminder when non-orchestrator writes outside .sisyphus/", async () => {
+      test("should NOT append reminder when non-orchestrator writes outside .omo/", async () => {
         // given
         const nonOrchestratorSession = "non-orchestrator-session"
         setupMessageStorage(nonOrchestratorSession, "sisyphus-junior")
@@ -1210,14 +1210,14 @@ session_id: ses_untrusted_999
       })
 
       describe("cross-platform path validation (Windows support)", () => {
-        test("should NOT append reminder when orchestrator writes inside .sisyphus\\ (Windows backslash)", async () => {
+        test("should NOT append reminder when orchestrator writes inside .omo\\ (Windows backslash)", async () => {
           // given
           const hook = createTestAtlasHook(createMockPluginInput())
           const originalOutput = "File written successfully"
           const output = {
             title: "Write",
             output: originalOutput,
-            metadata: { filePath: ".sisyphus\\plans\\work-plan.md" },
+            metadata: { filePath: ".omo\\plans\\work-plan.md" },
           }
 
           // when
@@ -1231,14 +1231,14 @@ session_id: ses_untrusted_999
           expect(output.output).not.toContain("DELEGATION REQUIRED")
         })
 
-        test("should NOT append reminder when orchestrator writes inside .sisyphus with mixed separators", async () => {
+        test("should NOT append reminder when orchestrator writes inside .omo with mixed separators", async () => {
           // given
           const hook = createTestAtlasHook(createMockPluginInput())
           const originalOutput = "File written successfully"
           const output = {
             title: "Write",
             output: originalOutput,
-            metadata: { filePath: ".sisyphus\\plans/work-plan.md" },
+            metadata: { filePath: ".omo\\plans/work-plan.md" },
           }
 
           // when
@@ -1252,14 +1252,14 @@ session_id: ses_untrusted_999
           expect(output.output).not.toContain("DELEGATION REQUIRED")
         })
 
-        test("should NOT append reminder for absolute Windows path inside .sisyphus\\", async () => {
+        test("should NOT append reminder for absolute Windows path inside .omo\\", async () => {
           // given
           const hook = createTestAtlasHook(createMockPluginInput())
           const originalOutput = "File written successfully"
           const output = {
             title: "Write",
             output: originalOutput,
-            metadata: { filePath: "C:\\Users\\test\\project\\.sisyphus\\plans\\x.md" },
+            metadata: { filePath: "C:\\Users\\test\\project\\.omo\\plans\\x.md" },
           }
 
           // when
@@ -1273,7 +1273,7 @@ session_id: ses_untrusted_999
           expect(output.output).not.toContain("DELEGATION REQUIRED")
         })
 
-        test("should append reminder for Windows path outside .sisyphus\\", async () => {
+        test("should append reminder for Windows path outside .omo\\", async () => {
           // given
           const hook = createTestAtlasHook(createMockPluginInput())
           const output = {
@@ -1553,11 +1553,11 @@ session_id: ses_untrusted_999
 
     test("should inject completion nudge when mirrored worktree plan is complete even if the main repo plan is stale", async () => {
       // given
-      const mainPlanPath = join(TEST_DIR, ".sisyphus", "plans", "worktree-complete-plan.md")
+      const mainPlanPath = join(TEST_DIR, ".omo", "plans", "worktree-complete-plan.md")
       const worktreeDir = join(tmpdir(), `atlas-worktree-${randomUUID()}`)
-      const worktreePlanPath = join(worktreeDir, ".sisyphus", "plans", "worktree-complete-plan.md")
-      mkdirSync(join(TEST_DIR, ".sisyphus", "plans"), { recursive: true })
-      mkdirSync(join(worktreeDir, ".sisyphus", "plans"), { recursive: true })
+      const worktreePlanPath = join(worktreeDir, ".omo", "plans", "worktree-complete-plan.md")
+      mkdirSync(join(TEST_DIR, ".omo", "plans"), { recursive: true })
+      mkdirSync(join(worktreeDir, ".omo", "plans"), { recursive: true })
       writeFileSync(mainPlanPath, "# Plan\n- [ ] Main repo task\n")
       writeFileSync(worktreePlanPath, "# Plan\n- [x] Worktree task\n")
 

src/hooks/atlas/omo-path.ts

@@ -0,0 +1,8 @@
+/**
+ * Cross-platform check if a path is inside .omo/ directory.
+ * Handles both forward slashes (Unix) and backslashes (Windows).
+ * Uses path segment matching instead of substring matching.
+ */
+export function isOmoPath(filePath: string): boolean {
+  return /\.omo[/\\]/.test(filePath)
+}

src/hooks/atlas/resolve-active-boulder-session.test.ts

@@ -99,9 +99,9 @@ describe("resolveActiveBoulderSession", () => {
 
   test("returns complete progress when a mirrored worktree plan is complete", async () => {
     // given
-    const mainPlanPath = join(testDirectory, ".sisyphus", "plans", "worktree-plan.md")
+    const mainPlanPath = join(testDirectory, ".omo", "plans", "worktree-plan.md")
     const worktreeDirectory = join(tmpdir(), `resolve-active-boulder-worktree-${randomUUID()}`)
-    const worktreePlanPath = join(worktreeDirectory, ".sisyphus", "plans", "worktree-plan.md")
+    const worktreePlanPath = join(worktreeDirectory, ".omo", "plans", "worktree-plan.md")
     mkdirSync(dirname(mainPlanPath), { recursive: true })
     mkdirSync(dirname(worktreePlanPath), { recursive: true })
     writeFileSync(mainPlanPath, "# Plan\n- [ ] Main repo task\n", "utf-8")

src/hooks/atlas/sisyphus-path.ts

@@ -1,8 +0,0 @@
-/**
- * Cross-platform check if a path is inside .sisyphus/ directory.
- * Handles both forward slashes (Unix) and backslashes (Windows).
- * Uses path segment matching (not substring) to avoid false positives like "not-sisyphus/file.txt"
- */
-export function isSisyphusPath(filePath: string): boolean {
-  return /\.sisyphus[/\\]/.test(filePath)
-}

src/hooks/atlas/system-reminder-templates.ts

@@ -29,7 +29,7 @@ You have an active work plan with incomplete tasks. Continue working.
 RULES:
 - **FIRST**: Read the plan file NOW. If the last completed task is still unchecked, mark it \`- [x]\` IMMEDIATELY before anything else
 - Proceed without asking for permission
-- Use the notepad at .sisyphus/notepads/{PLAN_NAME}/ to record learnings
+- Use the notepad at .omo/notepads/{PLAN_NAME}/ to record learnings
 - Do not stop until all tasks are complete
 - If blocked, document the blocker and move to the next task`
 
@@ -203,7 +203,7 @@ task(
 \`\`\`
 
 Allowed direct operations:
-- \`.sisyphus/\` files (plans, notepads)
+- \`.omo/\` files (plans, notepads)
 - Reading any file (verification)
 - Running commands (verification)
 

src/hooks/atlas/tool-execute-after-task-timers.test.ts

@@ -227,7 +227,7 @@ describe("createToolExecuteAfterHandler task timers", () => {
   it("ends task timer when plan checkbox flips to checked via edit tool", async () => {
     // given
     const parentSessionID = "ses_parent_3"
-    const planDirectory = join(testDirectory, ".sisyphus", "plans")
+    const planDirectory = join(testDirectory, ".omo", "plans")
     mkdirSync(planDirectory, { recursive: true })
     const planPath = join(planDirectory, "task-timer-edit-plan.md")
     writeFileSync(planPath, "# Plan\n\n## TODOs\n- [ ] 1. Implement auth flow\n", "utf-8")

src/hooks/atlas/tool-execute-after.ts

@@ -19,7 +19,7 @@ import { collectGitDiffStats, formatFileChanges } from "../../shared/git-worktre
 import { shouldPauseForFinalWaveApproval } from "./final-wave-approval-gate"
 import { HOOK_NAME } from "./hook-name"
 import { DIRECT_WORK_REMINDER } from "./system-reminder-templates"
-import { isSisyphusPath } from "./sisyphus-path"
+import { isOmoPath } from "./omo-path"
 import { resolvePreferredSessionId, resolveTaskContext } from "./task-context"
 import { extractSessionIdFromMetadata, extractSessionIdFromOutput, validateSubagentSessionId } from "./subagent-session-id"
 import {
@@ -175,7 +175,7 @@ export function createToolExecuteAfterHandler(input: {
         }
       }
 
-      if (filePath && !isSisyphusPath(filePath)) {
+      if (filePath && !isOmoPath(filePath)) {
         toolOutput.output = (toolOutput.output || "") + DIRECT_WORK_REMINDER
         log(`[${HOOK_NAME}] Direct work reminder appended`, {
           sessionID: toolInput.sessionID,

src/hooks/atlas/tool-execute-before.ts

@@ -7,7 +7,7 @@ import { resolve } from "node:path"
 import { getWorkForSession, readBoulderState, readCurrentTopLevelTask, resolveBoulderPlanPath, resolveBoulderPlanPathForWork } from "../../features/boulder-state"
 import { HOOK_NAME } from "./hook-name"
 import { ORCHESTRATOR_DELEGATION_REQUIRED, SINGLE_TASK_DIRECTIVE } from "./system-reminder-templates"
-import { isSisyphusPath } from "./sisyphus-path"
+import { isOmoPath } from "./omo-path"
 import type { PendingTaskRef, TrackedTopLevelTaskRef } from "./types"
 import { isWriteOrEditToolName } from "./write-edit-tool-policy"
 
@@ -108,7 +108,7 @@ export function createToolExecuteBeforeHandler(input: {
         }
       }
 
-      if (!isSisyphusPath(filePath)) {
+      if (!isOmoPath(filePath)) {
         const warning = ORCHESTRATOR_DELEGATION_REQUIRED.replace("$FILE_PATH", filePath)
         toolOutput.message = (toolOutput.message || "") + warning
         log(`[${HOOK_NAME}] Injected delegation warning for direct file modification`, {

src/hooks/atlas/verification-reminders.test.ts

@@ -26,7 +26,7 @@ describe("buildCompletionGate", () => {
 
       then("gate interpolates the plan name path", () => {
         expect(gate).toContain(planName)
-        expect(gate).toContain(`.sisyphus/plans/${planName}.md`)
+        expect(gate).toContain(`.omo/plans/${planName}.md`)
       })
 
       then("gate includes Edit instructions", () => {

src/hooks/atlas/verification-reminders.ts

@@ -15,13 +15,13 @@ export function buildCompletionGate(planName: string, sessionId: string): string
 
 Your completion will NOT be recorded until you complete ALL of the following:
 
-1. **Edit** the plan file \`.sisyphus/plans/${planName}.md\`:
+1. **Edit** the plan file \`.omo/plans/${planName}.md\`:
    - Change \`- [ ]\` to \`- [x]\` for the completed task
    - Use \`Edit\` tool to modify the checkbox
 
 2. **Read** the plan file AGAIN:
    \`\`\`
-   Read(".sisyphus/plans/${planName}.md")
+   Read(".omo/plans/${planName}.md")
    \`\`\`
    - Verify the checkbox count changed (more \`- [x]\` than before)
 
@@ -88,7 +88,7 @@ ${includeCompletionGate ? `${buildCompletionGate(planName, sessionId)}
 
 The subagent was instructed to record findings in notepad files. Read them NOW:
 \`\`\`
-Glob(".sisyphus/notepads/${planName}/*.md")
+Glob(".omo/notepads/${planName}/*.md")
 \`\`\`
 Then \`Read\` each file found - especially:
 - **learnings.md**: Patterns, conventions, successful approaches discovered
@@ -104,7 +104,7 @@ Then \`Read\` each file found - especially:
 
 Do NOT rely on cached progress. Read the plan file NOW:
 \`\`\`
-Read(".sisyphus/plans/${planName}.md")
+Read(".omo/plans/${planName}.md")
 \`\`\`
 Count exactly: how many \`- [ ]\` remain? How many \`- [x]\` completed?
 This is YOUR ground truth. Use it to decide what comes next.
@@ -143,7 +143,7 @@ The last Final Verification Wave result just passed.
 This is the ONLY point where approval-style user interaction is required.
 
 1. Read \
-\`.sisyphus/plans/${planName}.md\` again and confirm every remaining unchecked **top-level** task belongs to F1-F4.
+\`.omo/plans/${planName}.md\` again and confirm every remaining unchecked **top-level** task belongs to F1-F4.
    Ignore nested checkboxes under Acceptance Criteria, Evidence, or Final Checklist sections.
 2. Consolidate the F1-F4 verdicts into a short summary for the user.
 3. Tell the user all final reviewers approved.

src/hooks/keyword-detector/ultrawork/planner.ts

@@ -11,19 +11,19 @@ You ARE the planner. You ARE NOT an implementer. You DO NOT write code. You DO N
 **TOOL RESTRICTIONS (SYSTEM-ENFORCED):**
 | Tool | Allowed | Blocked |
 |------|---------|---------|
-| Write/Edit | \`.sisyphus/**/*.md\` ONLY | Everything else |
+| Write/Edit | \`.omo/**/*.md\` ONLY | Everything else |
 | Read | All files | - |
 | Bash | Research commands only | Implementation commands |
 | task | explore, librarian | - |
 
-**IF YOU TRY TO WRITE/EDIT OUTSIDE \`.sisyphus/\`:**
+**IF YOU TRY TO WRITE/EDIT OUTSIDE \`.omo/\`:**
 - System will BLOCK your action
 - You will receive an error
 - DO NOT retry - you are not supposed to implement
 
 **YOUR ONLY WRITABLE PATHS:**
-- \`.sisyphus/plans/*.md\` - Final work plans
-- \`.sisyphus/drafts/*.md\` - Working drafts during interview
+- \`.omo/plans/*.md\` - Final work plans
+- \`.omo/drafts/*.md\` - Working drafts during interview
 
 **WHEN USER ASKS YOU TO IMPLEMENT:**
 REFUSE. Say: "I'm a planner. I create work plans, not implementations. Run \`/start-work\` after I finish planning."

src/hooks/prometheus-md-only/constants.ts

@@ -7,7 +7,7 @@ export const PROMETHEUS_AGENT = "prometheus"
 
 export const ALLOWED_EXTENSIONS = [".md"]
 
-export const ALLOWED_PATH_PREFIX = ".sisyphus"
+export const ALLOWED_PATH_PREFIX = ".omo"
 
 export const BLOCKED_TOOLS = ["Write", "Edit", "write", "edit"]
 
@@ -17,7 +17,7 @@ export const PLANNING_CONSULT_WARNING = `
 
 ${createSystemDirective(SystemDirectiveTypes.PROMETHEUS_READ_ONLY)}
 
-You are being invoked by ${getAgentDisplayName("prometheus")}, a planning agent restricted to .sisyphus/*.md plan files only.
+You are being invoked by ${getAgentDisplayName("prometheus")}, a planning agent restricted to .omo/*.md plan files only.
 
 **CRITICAL CONSTRAINTS:**
 - DO NOT modify any files (no Write, Edit, or any file mutations)
@@ -48,13 +48,13 @@ ${createSystemDirective(SystemDirectiveTypes.PROMETHEUS_READ_ONLY)}
 │  1   │ INTERVIEW: Full consultation with user                       │
 │      │    - Gather ALL requirements                                 │
 │      │    - Clarify ambiguities                                     │
-│      │    - Record decisions to .sisyphus/drafts/                   │
+│      │    - Record decisions to .omo/drafts/                   │
 ├──────┼──────────────────────────────────────────────────────────────┤
 │  2   │ METIS CONSULTATION: Pre-generation gap analysis              │
 │      │    - task(agent="Metis - Plan Consultant", ...)     │
 │      │    - Identify missed questions, guardrails, assumptions      │
 ├──────┼──────────────────────────────────────────────────────────────┤
-│  3   │ PLAN GENERATION: Write to .sisyphus/plans/*.md               │
+│  3   │ PLAN GENERATION: Write to .omo/plans/*.md               │
 │      │    <- YOU ARE HERE                                           │
 ├──────┼──────────────────────────────────────────────────────────────┤
 │  4   │ MOMUS REVIEW (if high accuracy requested)                    │

src/hooks/prometheus-md-only/hook.ts

@@ -47,21 +47,21 @@ export function createPrometheusMdOnlyHook(ctx: PluginInput) {
       }
 
        if (!isAllowedFile(filePath, ctx.directory)) {
-         log(`[${HOOK_NAME}] Blocked: Prometheus can only write to .sisyphus/*.md`, {
+         log(`[${HOOK_NAME}] Blocked: Prometheus can only write to .omo/*.md`, {
            sessionID: input.sessionID,
            tool: toolName,
            filePath,
            agent: agentName,
          })
          throw new Error(
-           `[${HOOK_NAME}] Prometheus is a planning agent. File operations restricted to .sisyphus/*.md plan files only. Use task() to delegate implementation. ` +
+           `[${HOOK_NAME}] Prometheus is a planning agent. File operations restricted to .omo/*.md plan files only. Use task() to delegate implementation. ` +
            `Attempted to modify: ${filePath}. ` +
            `APOLOGIZE TO THE USER, REMIND OF YOUR PLAN WRITING PROCESSES, TELL USER WHAT YOU WILL GOING TO DO AS THE PROCESS, WRITE THE PLAN`
          )
        }
 
       const normalizedPath = filePath.toLowerCase().replace(/\\/g, "/")
-      if (normalizedPath.includes(".sisyphus/plans/") || normalizedPath.includes(".sisyphus\\plans\\")) {
+      if (normalizedPath.includes(".omo/plans/") || normalizedPath.includes(".omo\\plans\\")) {
         log(`[${HOOK_NAME}] Injecting workflow reminder for plan write`, {
           sessionID: input.sessionID,
           tool: toolName,
@@ -71,7 +71,7 @@ export function createPrometheusMdOnlyHook(ctx: PluginInput) {
         output.message = (output.message || "") + PROMETHEUS_WORKFLOW_REMINDER
       }
 
-      log(`[${HOOK_NAME}] Allowed: .sisyphus/*.md write permitted`, {
+      log(`[${HOOK_NAME}] Allowed: .omo/*.md write permitted`, {
         sessionID: input.sessionID,
         tool: toolName,
         filePath,

src/hooks/prometheus-md-only/index.test.ts

@@ -89,7 +89,7 @@ describe("prometheus-md-only", () => {
       //#when //#then
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
     test("should enforce md-only restriction for Prometheus display name Plan Builder", async () => {
@@ -108,7 +108,7 @@ describe("prometheus-md-only", () => {
       //#when //#then
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
     test("should enforce md-only restriction for Prometheus display name Planner", async () => {
@@ -127,7 +127,7 @@ describe("prometheus-md-only", () => {
       //#when //#then
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
     test("should enforce md-only restriction for uppercase PROMETHEUS", async () => {
@@ -146,7 +146,7 @@ describe("prometheus-md-only", () => {
       //#when //#then
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
     test("should not enforce restriction for non-Prometheus agent", async () => {
@@ -208,10 +208,10 @@ describe("prometheus-md-only", () => {
       // when / #then
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
-    test("should allow Prometheus to write .md files inside .sisyphus/", async () => {
+    test("should allow Prometheus to write .md files inside .omo/", async () => {
       // given
       const hook = createPrometheusMdOnlyHook(createMockPluginInput())
       const input = {
@@ -220,7 +220,7 @@ describe("prometheus-md-only", () => {
         callID: "call-1",
       }
       const output = {
-        args: { filePath: "/tmp/test/.sisyphus/plans/work-plan.md" },
+        args: { filePath: "/tmp/test/.omo/plans/work-plan.md" },
       }
 
       // when / #then
@@ -229,7 +229,7 @@ describe("prometheus-md-only", () => {
       ).resolves.toBeUndefined()
     })
 
-    test("should inject workflow reminder when Prometheus writes to .sisyphus/plans/", async () => {
+    test("should inject workflow reminder when Prometheus writes to .omo/plans/", async () => {
       // given
       const hook = createPrometheusMdOnlyHook(createMockPluginInput())
       const input = {
@@ -238,7 +238,7 @@ describe("prometheus-md-only", () => {
         callID: "call-1",
       }
       const output: { args: Record<string, unknown>; message?: string } = {
-        args: { filePath: "/tmp/test/.sisyphus/plans/work-plan.md" },
+        args: { filePath: "/tmp/test/.omo/plans/work-plan.md" },
       }
 
       // when
@@ -251,7 +251,7 @@ describe("prometheus-md-only", () => {
       expect(output.message).toContain("MOMUS REVIEW")
     })
 
-    test("should NOT inject workflow reminder for .sisyphus/drafts/", async () => {
+    test("should NOT inject workflow reminder for .omo/drafts/", async () => {
       // given
       const hook = createPrometheusMdOnlyHook(createMockPluginInput())
       const input = {
@@ -260,7 +260,7 @@ describe("prometheus-md-only", () => {
         callID: "call-1",
       }
       const output: { args: Record<string, unknown>; message?: string } = {
-        args: { filePath: "/tmp/test/.sisyphus/drafts/notes.md" },
+        args: { filePath: "/tmp/test/.omo/drafts/notes.md" },
       }
 
       // when
@@ -270,7 +270,7 @@ describe("prometheus-md-only", () => {
       expect(output.message).toBeUndefined()
     })
 
-    test("should block Prometheus from writing .md files outside .sisyphus/", async () => {
+    test("should block Prometheus from writing .md files outside .omo/", async () => {
       // given
       const hook = createPrometheusMdOnlyHook(createMockPluginInput())
       const input = {
@@ -285,7 +285,7 @@ describe("prometheus-md-only", () => {
       // when / #then
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
     test("should block Edit tool for non-.md files", async () => {
@@ -303,7 +303,7 @@ describe("prometheus-md-only", () => {
       // when / #then
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
     test("should allow bash commands from Prometheus", async () => {
@@ -487,10 +487,10 @@ describe("prometheus-md-only", () => {
 
   describe("boulder state priority over message files (fixes #927)", () => {
     const BOULDER_DIR = join(tmpdir(), `boulder-test-${randomUUID()}`)
-    const BOULDER_FILE = join(BOULDER_DIR, ".sisyphus", "boulder.json")
+    const BOULDER_FILE = join(BOULDER_DIR, ".omo", "boulder.json")
 
     beforeEach(() => {
-      mkdirSync(join(BOULDER_DIR, ".sisyphus"), { recursive: true })
+      mkdirSync(join(BOULDER_DIR, ".omo"), { recursive: true })
     })
 
     afterEach(() => {
@@ -562,7 +562,7 @@ describe("prometheus-md-only", () => {
       // when / then - should block because boulder says prometheus
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
 
     test("should fall back to message files when session not in boulder", async () => {
@@ -595,7 +595,7 @@ describe("prometheus-md-only", () => {
       // when / then - should block because falls back to message files (prometheus)
       await expect(
         hook["tool.execute.before"](input, output)
-      ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+      ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
     })
   })
 
@@ -624,7 +624,7 @@ describe("prometheus-md-only", () => {
       setupMessageStorage(TEST_SESSION_ID, "prometheus")
     })
 
-     test("should allow Windows-style backslash paths under .sisyphus/", async () => {
+     test("should allow Windows-style backslash paths under .omo/", async () => {
        // given
        setupMessageStorage(TEST_SESSION_ID, "prometheus")
        const hook = createPrometheusMdOnlyHook(createMockPluginInput())
@@ -634,7 +634,7 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: ".sisyphus\\plans\\work-plan.md" },
+         args: { filePath: ".omo\\plans\\work-plan.md" },
        }
 
        // when / #then
@@ -643,7 +643,7 @@ describe("prometheus-md-only", () => {
        ).resolves.toBeUndefined()
      })
 
-     test("should allow mixed separator paths under .sisyphus/", async () => {
+     test("should allow mixed separator paths under .omo/", async () => {
        // given
        setupMessageStorage(TEST_SESSION_ID, "prometheus")
        const hook = createPrometheusMdOnlyHook(createMockPluginInput())
@@ -653,7 +653,7 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: ".sisyphus\\plans/work-plan.MD" },
+         args: { filePath: ".omo\\plans/work-plan.MD" },
        }
 
        // when / #then
@@ -672,7 +672,7 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: ".sisyphus/plans/work-plan.MD" },
+         args: { filePath: ".omo/plans/work-plan.MD" },
        }
 
        // when / #then
@@ -681,7 +681,7 @@ describe("prometheus-md-only", () => {
        ).resolves.toBeUndefined()
      })
 
-     test("should block paths outside workspace root even if containing .sisyphus", async () => {
+     test("should block paths outside workspace root even if containing .omo", async () => {
        // given
        setupMessageStorage(TEST_SESSION_ID, "prometheus")
        const hook = createPrometheusMdOnlyHook(createMockPluginInput())
@@ -691,16 +691,16 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: "/other/project/.sisyphus/plans/x.md" },
+         args: { filePath: "/other/project/.omo/plans/x.md" },
        }
 
        // when / #then
        await expect(
          hook["tool.execute.before"](input, output)
-       ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+       ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
      })
 
-     test("should allow nested .sisyphus directories (ctx.directory may be parent)", async () => {
+     test("should allow nested .omo directories (ctx.directory may be parent)", async () => {
        // given - when ctx.directory is parent of actual project, path includes project name
        setupMessageStorage(TEST_SESSION_ID, "prometheus")
        const hook = createPrometheusMdOnlyHook(createMockPluginInput())
@@ -710,10 +710,10 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: "src/.sisyphus/plans/x.md" },
+         args: { filePath: "src/.omo/plans/x.md" },
        }
 
-       // when / #then - should allow because .sisyphus is in path
+       // when / #then - should allow because .omo is in path
        await expect(
          hook["tool.execute.before"](input, output)
        ).resolves.toBeUndefined()
@@ -729,16 +729,16 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: ".sisyphus/../secrets.md" },
+         args: { filePath: ".omo/../secrets.md" },
        }
 
        // when / #then
        await expect(
          hook["tool.execute.before"](input, output)
-       ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+       ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
      })
 
-     test("should allow case-insensitive .SISYPHUS directory", async () => {
+     test("should allow case-insensitive .OMO directory", async () => {
        // given
        setupMessageStorage(TEST_SESSION_ID, "prometheus")
        const hook = createPrometheusMdOnlyHook(createMockPluginInput())
@@ -748,7 +748,7 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: ".SISYPHUS/plans/work-plan.md" },
+         args: { filePath: ".OMO/plans/work-plan.md" },
        }
 
        // when / #then
@@ -757,9 +757,9 @@ describe("prometheus-md-only", () => {
        ).resolves.toBeUndefined()
      })
 
-     test("should allow nested project path with .sisyphus (Windows real-world case)", async () => {
+     test("should allow nested project path with .omo (Windows real-world case)", async () => {
        // given - simulates when ctx.directory is parent of actual project
-       // User reported: xauusd-dxy-plan\.sisyphus\drafts\supabase-email-templates.md
+       // User reported: xauusd-dxy-plan\.omo\drafts\supabase-email-templates.md
        setupMessageStorage(TEST_SESSION_ID, "prometheus")
        const hook = createPrometheusMdOnlyHook(createMockPluginInput())
        const input = {
@@ -768,7 +768,7 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: "xauusd-dxy-plan\\.sisyphus\\drafts\\supabase-email-templates.md" },
+         args: { filePath: "xauusd-dxy-plan\\.omo\\drafts\\supabase-email-templates.md" },
        }
 
        // when / #then
@@ -787,7 +787,7 @@ describe("prometheus-md-only", () => {
          callID: "call-1",
        }
        const output = {
-         args: { filePath: "my-project/.sisyphus\\plans/task.md" },
+         args: { filePath: "my-project/.omo\\plans/task.md" },
        }
 
        // when / #then
@@ -796,7 +796,7 @@ describe("prometheus-md-only", () => {
        ).resolves.toBeUndefined()
      })
 
-     test("should block nested project path without .sisyphus", async () => {
+     test("should block nested project path without .omo", async () => {
        // given
        setupMessageStorage(TEST_SESSION_ID, "prometheus")
        const hook = createPrometheusMdOnlyHook(createMockPluginInput())
@@ -812,7 +812,7 @@ describe("prometheus-md-only", () => {
        // when / #then
        await expect(
          hook["tool.execute.before"](input, output)
-       ).rejects.toThrow("File operations restricted to .sisyphus/*.md plan files only")
+       ).rejects.toThrow("File operations restricted to .omo/*.md plan files only")
      })
   })
 })

src/hooks/prometheus-md-only/path-policy.ts

@@ -5,11 +5,11 @@ import { ALLOWED_EXTENSIONS } from "./constants"
 /**
  * Cross-platform path validator for Prometheus file writes.
  * Uses path.resolve/relative instead of string matching to handle:
- * - Windows backslashes (e.g., .sisyphus\\plans\\x.md)
- * - Mixed separators (e.g., .sisyphus\\plans/x.md)
+ * - Windows backslashes (e.g., .omo\\plans\\x.md)
+ * - Mixed separators (e.g., .omo\\plans/x.md)
  * - Case-insensitive directory/extension matching
  * - Workspace confinement (blocks paths outside root or via traversal)
- * - Nested project paths (e.g., parent/.sisyphus/... when ctx.directory is parent)
+ * - Nested project paths (e.g., parent/.omo/... when ctx.directory is parent)
  */
 export function isAllowedFile(filePath: string, workspaceRoot: string): boolean {
   // 1. Resolve to absolute path
@@ -23,9 +23,9 @@ export function isAllowedFile(filePath: string, workspaceRoot: string): boolean
     return false
   }
 
-  // 4. Check if .sisyphus/ or .sisyphus\ exists anywhere in the path (case-insensitive)
-  // This handles both direct paths (.sisyphus/x.md) and nested paths (project/.sisyphus/x.md)
-  if (!/\.sisyphus[/\\]/i.test(rel)) {
+  // 4. Check if .omo/ or .omo\ exists anywhere in the path (case-insensitive)
+  // This handles both direct paths (.omo/x.md) and nested paths (project/.omo/x.md)
+  if (!/\.omo[/\\]/i.test(rel)) {
     return false
   }
 

src/hooks/ralph-loop/constants.ts

@@ -1,5 +1,5 @@
 export const HOOK_NAME = "ralph-loop"
-export const DEFAULT_STATE_FILE = ".sisyphus/ralph-loop.local.md"
+export const DEFAULT_STATE_FILE = ".omo/ralph-loop.local.md"
 export const COMPLETION_TAG_PATTERN = /<promise>(.*?)<\/promise>/is
 export const DEFAULT_MAX_ITERATIONS = 100
 export const ULTRAWORK_MAX_ITERATIONS = 500

src/hooks/sisyphus-junior-notepad/constants.ts

@@ -3,7 +3,7 @@ export const HOOK_NAME = "sisyphus-junior-notepad"
 export const NOTEPAD_DIRECTIVE = `
 <Work_Context>
 ## Notepad Location (for recording learnings)
-NOTEPAD PATH: .sisyphus/notepads/{plan-name}/
+NOTEPAD PATH: .omo/notepads/{plan-name}/
 - learnings.md: Record patterns, conventions, successful approaches
 - issues.md: Record problems, blockers, gotchas encountered
 - decisions.md: Record architectural choices and rationales
@@ -13,11 +13,11 @@ You SHOULD append findings to notepad files after completing work.
 IMPORTANT: Always APPEND to notepad files - never overwrite or use Edit tool.
 
 ## Plan Location (READ ONLY)
-PLAN PATH: .sisyphus/plans/{plan-name}.md
+PLAN PATH: .omo/plans/{plan-name}.md
 
 CRITICAL RULE: NEVER MODIFY THE PLAN FILE
 
-The plan file (.sisyphus/plans/*.md) is SACRED and READ-ONLY.
+The plan file (.omo/plans/*.md) is SACRED and READ-ONLY.
 - You may READ the plan to understand tasks
 - You may READ checkbox items to know what to do
 - You MUST NOT edit, modify, or update the plan file

src/hooks/write-existing-file-guard/index.test.ts

@@ -244,8 +244,8 @@ describe("createWriteExistingFileGuardHook", () => {
     ).rejects.toThrow(BLOCK_MESSAGE)
   })
 
-  test("#given existing file under .sisyphus #when write executes #then always allows", async () => {
-    const existingFile = createFile(".sisyphus/plans/plan.txt")
+  test("#given existing file under .omo #when write executes #then always allows", async () => {
+    const existingFile = createFile(".omo/plans/plan.txt")
 
     await expect(
       invoke({

src/hooks/write-existing-file-guard/tool-execute-before-handler.ts

@@ -149,9 +149,9 @@ export async function handleWriteExistingFileGuardToolExecuteBefore(params: {
     return
   }
 
-  const isSisyphusPath = canonicalPath.includes("/.sisyphus/")
-  if (isSisyphusPath) {
-    log("[write-existing-file-guard] Allowing .sisyphus/** overwrite", {
+  const isOmoPath = canonicalPath.includes("/.omo/")
+  if (isOmoPath) {
+    log("[write-existing-file-guard] Allowing .omo/** overwrite", {
       sessionID: input.sessionID,
       filePath,
     })