diff --git a/src/hooks/ralph-loop/completion-promise-detector-test-input.ts b/src/hooks/ralph-loop/completion-promise-detector-test-input.ts
new file mode 100644
index 000000000..4a1e6c259
--- /dev/null
+++ b/src/hooks/ralph-loop/completion-promise-detector-test-input.ts
@@ -0,0 +1,23 @@
+///
+import type { PluginInput } from "@opencode-ai/plugin"
+
+export type SessionMessage = {
+ info?: { role?: string }
+ parts?: Array<{ type: string; text?: string }>
+}
+
+export function createPluginInput(messages: SessionMessage[]): PluginInput {
+ const pluginInput = {
+ client: { session: {} } as PluginInput["client"],
+ project: {} as PluginInput["project"],
+ directory: "/tmp",
+ worktree: "/tmp",
+ serverUrl: new URL("http://localhost"),
+ $: {} as PluginInput["$"],
+ } as PluginInput
+
+ pluginInput.client.session.messages =
+ (async () => ({ data: messages })) as unknown as PluginInput["client"]["session"]["messages"]
+
+ return pluginInput
+}
diff --git a/src/hooks/ralph-loop/completion-promise-detector.test.ts b/src/hooks/ralph-loop/completion-promise-detector.test.ts
index 0e87bf94e..317883a6c 100644
--- a/src/hooks/ralph-loop/completion-promise-detector.test.ts
+++ b/src/hooks/ralph-loop/completion-promise-detector.test.ts
@@ -1,34 +1,13 @@
///
import { describe, expect, test } from "bun:test"
-import type { PluginInput } from "@opencode-ai/plugin"
-import { detectCompletionInSessionMessages, detectSemanticCompletion } from "./completion-promise-detector"
-
-type SessionMessage = {
- info?: { role?: string }
- parts?: Array<{ type: string; text?: string }>
-}
-
-function createPluginInput(messages: SessionMessage[]): PluginInput {
- const pluginInput = {
- client: { session: {} } as PluginInput["client"],
- project: {} as PluginInput["project"],
- directory: "/tmp",
- worktree: "/tmp",
- serverUrl: new URL("http://localhost"),
- $: {} as PluginInput["$"],
- } as PluginInput
-
- pluginInput.client.session.messages =
- (async () => ({ data: messages })) as unknown as PluginInput["client"]["session"]["messages"]
-
- return pluginInput
-}
+import { detectCompletionInSessionMessages } from "./completion-promise-detector"
+import { createPluginInput } from "./completion-promise-detector-test-input"
describe("detectCompletionInSessionMessages", () => {
describe("#given session with prior DONE and new messages", () => {
test("#when sinceMessageIndex excludes prior DONE #then should NOT detect completion", async () => {
// #given
- const messages: SessionMessage[] = [
+ const messages = [
{
info: { role: "assistant" },
parts: [{ type: "text", text: "Old completion DONE" }],
@@ -55,7 +34,7 @@ describe("detectCompletionInSessionMessages", () => {
test("#when sinceMessageIndex includes current DONE #then should detect completion", async () => {
// #given
- const messages: SessionMessage[] = [
+ const messages = [
{
info: { role: "assistant" },
parts: [{ type: "text", text: "Old completion DONE" }],
@@ -84,7 +63,7 @@ describe("detectCompletionInSessionMessages", () => {
describe("#given no sinceMessageIndex (backward compat)", () => {
test("#then should scan all messages", async () => {
// #given
- const messages: SessionMessage[] = [
+ const messages = [
{
info: { role: "assistant" },
parts: [{ type: "text", text: "Old completion DONE" }],
@@ -111,7 +90,7 @@ describe("detectCompletionInSessionMessages", () => {
describe("#given promise appears in tool_result part (not text part)", () => {
test("#when Oracle returns VERIFIED via task() tool_result #then should NOT detect completion", async () => {
- const messages: SessionMessage[] = [
+ const messages = [
{
info: { role: "assistant" },
parts: [
@@ -141,7 +120,7 @@ describe("detectCompletionInSessionMessages", () => {
})
test("#when DONE appears only in tool_result part #then should NOT detect completion", async () => {
- const messages: SessionMessage[] = [
+ const messages = [
{
info: { role: "assistant" },
parts: [
@@ -163,7 +142,7 @@ describe("detectCompletionInSessionMessages", () => {
})
test("#when promise appears in tool_use part (not tool_result) #then should NOT detect completion", async () => {
- const messages: SessionMessage[] = [
+ const messages = [
{
info: { role: "assistant" },
parts: [
@@ -184,217 +163,4 @@ describe("detectCompletionInSessionMessages", () => {
expect(detected).toBe(false)
})
})
-
- describe("#given semantic completion patterns", () => {
- test("#when agent says 'task is complete' without explicit promise #then should NOT detect completion", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [{ type: "text", text: "The task is complete. All work has been finished." }],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-123",
- promise: "DONE",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
-
- test("#when agent says 'all items are done' without explicit promise #then should NOT detect completion", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [{ type: "text", text: "All items are done and marked as complete." }],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-123",
- promise: "DONE",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
-
- test("#when agent says 'nothing left to do' without explicit promise #then should NOT detect completion", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [{ type: "text", text: "There is nothing left to do. Everything is finished." }],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-123",
- promise: "DONE",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
-
- test("#when agent says 'successfully completed all' without explicit promise #then should NOT detect completion", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [{ type: "text", text: "I have successfully completed all the required tasks." }],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-123",
- promise: "DONE",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
-
- test("#when promise is VERIFIED #then semantic completion should NOT trigger", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [{ type: "text", text: "The task is complete. All work has been finished." }],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-123",
- promise: "VERIFIED",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
-
- test("#when completion text appears inside a quote #then should NOT detect completion", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [{ type: "text", text: 'The user wrote: "the task is complete". I am still working.' }],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-quoted",
- promise: "DONE",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
-
- test("#when tool_result says all items are complete #then should NOT detect completion", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [
- { type: "tool_result", text: "Background agent report: all items are complete." },
- { type: "text", text: "Still validating the final behavior." },
- ],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-tool-result-semantic",
- promise: "DONE",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
-
- test("#when assistant says complete but not actually done #then should NOT detect completion", async () => {
- // #given
- const messages: SessionMessage[] = [
- {
- info: { role: "assistant" },
- parts: [{ type: "text", text: "The implementation looks complete, but I still need to run the tests." }],
- },
- ]
- const ctx = createPluginInput(messages)
-
- // #when
- const detected = await detectCompletionInSessionMessages(ctx, {
- sessionID: "session-not-actually-done",
- promise: "DONE",
- apiTimeoutMs: 1000,
- directory: "/tmp",
- })
-
- // #then
- expect(detected).toBe(false)
- })
- })
-})
-
-describe("detectSemanticCompletion", () => {
- describe("#given semantic completion patterns", () => {
- test("#when text contains 'task is complete' #then should return true", () => {
- expect(detectSemanticCompletion("The task is complete.")).toBe(true)
- })
-
- test("#when text contains 'all items are done' #then should return true", () => {
- expect(detectSemanticCompletion("All items are done.")).toBe(true)
- })
-
- test("#when text contains 'nothing left to do' #then should return true", () => {
- expect(detectSemanticCompletion("There is nothing left to do.")).toBe(true)
- })
-
- test("#when text contains 'successfully completed all' #then should return true", () => {
- expect(detectSemanticCompletion("Successfully completed all tasks.")).toBe(true)
- })
-
- test("#when text contains 'everything is finished' #then should return true", () => {
- expect(detectSemanticCompletion("Everything is finished.")).toBe(true)
- })
-
- test("#when text does NOT contain completion patterns #then should return false", () => {
- expect(detectSemanticCompletion("Working on the next task.")).toBe(false)
- })
-
- test("#when text is empty #then should return false", () => {
- expect(detectSemanticCompletion("")).toBe(false)
- })
- })
})
diff --git a/src/hooks/ralph-loop/completion-promise-detector.ts b/src/hooks/ralph-loop/completion-promise-detector.ts
index e02cd58ec..35b781a07 100644
--- a/src/hooks/ralph-loop/completion-promise-detector.ts
+++ b/src/hooks/ralph-loop/completion-promise-detector.ts
@@ -31,20 +31,6 @@ function buildPromisePattern(promise: string): RegExp {
return new RegExp(`\\s*${escapeRegex(promise)}\\s*`, "is")
}
-const SEMANTIC_COMPLETION_PATTERNS = [
- /\b(?:task|work|implementation|all\s+tasks?)\s+(?:is|are)\s+(?:complete|completed|done|finished)\b/i,
- /\ball\s+(?:items?|todos?|steps?)\s+(?:are\s+)?(?:complete|completed|done|finished|marked)\b/i,
- /\b(?:everything|all\s+work)\s+(?:is\s+)?(?:complete|completed|done|finished)\b/i,
- /\bsuccessfully\s+completed?\s+all\b/i,
- /\bnothing\s+(?:left|more|remaining)\s+to\s+(?:do|implement|fix)\b/i,
-]
-
-const SEMANTIC_DONE_FALLBACK_ENABLED = false
-
-export function detectSemanticCompletion(text: string): boolean {
- return SEMANTIC_COMPLETION_PATTERNS.some((pattern) => pattern.test(text))
-}
-
export function detectCompletionInTranscript(
transcriptPath: string | undefined,
promise: string,
@@ -57,7 +43,7 @@ export function detectCompletionInTranscript(
const content = readFileSync(transcriptPath, "utf-8")
const pattern = buildPromisePattern(promise)
- const lines = content.split("\n").filter((line) => line.trim())
+ const lines = content.split("\n").filter((line: string) => line.trim())
for (const line of lines) {
try {
@@ -68,11 +54,6 @@ export function detectCompletionInTranscript(
const entryText = extractTranscriptEntryText(entry)
if (!entryText) continue
if (pattern.test(entryText)) return true
- const isAssistantEntry = entry.type === "assistant" || entry.type === "text"
- if (SEMANTIC_DONE_FALLBACK_ENABLED && promise === "DONE" && isAssistantEntry && detectSemanticCompletion(entryText)) {
- log("[ralph-loop] WARNING: Semantic completion detected in transcript (agent used natural language instead of DONE)")
- return true
- }
} catch {
continue
}
@@ -136,13 +117,6 @@ export async function detectCompletionInSessionMessages(
if (pattern.test(responseText)) {
return true
}
-
- if (SEMANTIC_DONE_FALLBACK_ENABLED && options.promise === "DONE" && detectSemanticCompletion(responseText)) {
- log("[ralph-loop] WARNING: Semantic completion detected (agent used natural language instead of DONE)", {
- sessionID: options.sessionID,
- })
- return true
- }
}
return false
diff --git a/src/hooks/ralph-loop/completion-promise-session-negative.test.ts b/src/hooks/ralph-loop/completion-promise-session-negative.test.ts
new file mode 100644
index 000000000..4805c4994
--- /dev/null
+++ b/src/hooks/ralph-loop/completion-promise-session-negative.test.ts
@@ -0,0 +1,104 @@
+///
+import { describe, expect, test } from "bun:test"
+import { detectCompletionInSessionMessages } from "./completion-promise-detector"
+import { createPluginInput } from "./completion-promise-detector-test-input"
+
+describe("detectCompletionInSessionMessages negative cases", () => {
+ describe("#given natural language completion text without explicit promise", () => {
+ test("#when assistant says work is complete #then should NOT detect completion", async () => {
+ // #given
+ const messages = [
+ {
+ info: { role: "assistant" },
+ parts: [{ type: "text", text: "The task is complete. All work has been finished." }],
+ },
+ ]
+ const ctx = createPluginInput(messages)
+
+ // #when
+ const detected = await detectCompletionInSessionMessages(ctx, {
+ sessionID: "session-natural-language",
+ promise: "DONE",
+ apiTimeoutMs: 1000,
+ directory: "/tmp",
+ })
+
+ // #then
+ expect(detected).toBe(false)
+ })
+
+ test("#when assistant quotes completion text while still working #then should NOT detect completion", async () => {
+ // #given
+ const messages = [
+ {
+ info: { role: "assistant" },
+ parts: [{ type: "text", text: 'The user wrote: "the task is complete". I am still working.' }],
+ },
+ ]
+ const ctx = createPluginInput(messages)
+
+ // #when
+ const detected = await detectCompletionInSessionMessages(ctx, {
+ sessionID: "session-quoted-language",
+ promise: "DONE",
+ apiTimeoutMs: 1000,
+ directory: "/tmp",
+ })
+
+ // #then
+ expect(detected).toBe(false)
+ })
+ })
+
+ describe("#given promise appears outside assistant text parts", () => {
+ test("#when VERIFIED appears only in tool_result part #then should NOT detect completion", async () => {
+ // #given
+ const messages = [
+ {
+ info: { role: "assistant" },
+ parts: [
+ { type: "tool_result", text: 'Task completed.\n\nAgent: oracle\n\nVERIFIED' },
+ { type: "text", text: "Oracle verified the task." },
+ ],
+ },
+ ]
+ const ctx = createPluginInput(messages)
+
+ // #when
+ const detected = await detectCompletionInSessionMessages(ctx, {
+ sessionID: "session-verified-tool-result",
+ promise: "VERIFIED",
+ apiTimeoutMs: 1000,
+ directory: "/tmp",
+ })
+
+ // #then
+ expect(detected).toBe(false)
+ })
+
+ test("#when DONE appears only in tool_result part #then should NOT detect completion", async () => {
+ // #given
+ const messages = [
+ {
+ info: { role: "assistant" },
+ parts: [
+ { type: "tool_result", text: "Background task output DONE" },
+ { type: "text", text: "Task completed successfully." },
+ ],
+ },
+ ]
+ const ctx = createPluginInput(messages)
+
+ // #when
+ const detected = await detectCompletionInSessionMessages(ctx, {
+ sessionID: "session-done-tool-result",
+ promise: "DONE",
+ apiTimeoutMs: 1000,
+ directory: "/tmp",
+ })
+
+ // #then
+ expect(detected).toBe(false)
+ })
+ })
+})
diff --git a/src/hooks/ralph-loop/completion-promise-transcript-detector.test.ts b/src/hooks/ralph-loop/completion-promise-transcript-detector.test.ts
new file mode 100644
index 000000000..0d2509b57
--- /dev/null
+++ b/src/hooks/ralph-loop/completion-promise-transcript-detector.test.ts
@@ -0,0 +1,82 @@
+///
+import { afterEach, describe, expect, test } from "bun:test"
+import { mkdtempSync, rmSync, writeFileSync } from "node:fs"
+import { join } from "node:path"
+import { tmpdir } from "node:os"
+import { detectCompletionInTranscript } from "./completion-promise-detector"
+
+const temporaryDirectories: string[] = []
+
+function createTranscriptFile(lines: string[]): string {
+ const directoryPath = mkdtempSync(join(tmpdir(), "ralph-loop-transcript-"))
+ temporaryDirectories.push(directoryPath)
+ const transcriptPath = join(directoryPath, "session.jsonl")
+ writeFileSync(transcriptPath, `${lines.join("\n")}\n`)
+ return transcriptPath
+}
+
+afterEach(() => {
+ for (const directoryPath of temporaryDirectories.splice(0)) {
+ rmSync(directoryPath, { force: true, recursive: true })
+ }
+})
+
+describe("detectCompletionInTranscript", () => {
+ describe("#given transcript entries after loop start", () => {
+ test("#when assistant content includes explicit DONE promise #then should detect completion", () => {
+ // #given
+ const transcriptPath = createTranscriptFile([
+ JSON.stringify({ type: "assistant", timestamp: "2026-03-28T10:00:00.000Z", content: "Still working" }),
+ JSON.stringify({ type: "assistant", timestamp: "2026-03-28T10:01:00.000Z", content: "Finished DONE" }),
+ ])
+
+ // #when
+ const detected = detectCompletionInTranscript(transcriptPath, "DONE", "2026-03-28T09:59:59.000Z")
+
+ // #then
+ expect(detected).toBe(true)
+ })
+
+ test("#when explicit DONE appears only before startedAt #then should NOT detect completion", () => {
+ // #given
+ const transcriptPath = createTranscriptFile([
+ JSON.stringify({ type: "assistant", timestamp: "2026-03-28T10:00:00.000Z", content: "Finished DONE" }),
+ JSON.stringify({ type: "assistant", timestamp: "2026-03-28T10:01:00.000Z", content: "Working on the new task" }),
+ ])
+
+ // #when
+ const detected = detectCompletionInTranscript(transcriptPath, "DONE", "2026-03-28T10:00:30.000Z")
+
+ // #then
+ expect(detected).toBe(false)
+ })
+ })
+
+ describe("#given transcript content without explicit assistant promise text", () => {
+ test("#when assistant uses only natural language completion text #then should NOT detect completion", () => {
+ // #given
+ const transcriptPath = createTranscriptFile([
+ JSON.stringify({ type: "assistant", timestamp: "2026-03-28T10:01:00.000Z", content: "The task is complete. All work has been finished." }),
+ ])
+
+ // #when
+ const detected = detectCompletionInTranscript(transcriptPath, "DONE")
+
+ // #then
+ expect(detected).toBe(false)
+ })
+
+ test("#when tool output contains DONE promise without assistant entry type #then should NOT detect completion", () => {
+ // #given
+ const transcriptPath = createTranscriptFile([
+ JSON.stringify({ type: "tool_result", timestamp: "2026-03-28T10:01:00.000Z", tool_output: "Background task DONE" }),
+ ])
+
+ // #when
+ const detected = detectCompletionInTranscript(transcriptPath, "DONE")
+
+ // #then
+ expect(detected).toBe(false)
+ })
+ })
+})