feat: add ci test runner, session routing, bash parser, and test fixtures

- script/run-ci-tests.ts: CI test sharding and isolation logic
- script/run-ci-tests.test.ts: tests for CI test target selection
- src/features/background-agent/session-route.ts: session prompt routing for background agents
- src/hooks/interactive-bash-session/parser.ts: interactive bash output parser
- src/hooks/ralph-loop/completion-promise-detector-test-input.ts: test fixture for completion promise detection

src/features/background-agent/session-route.ts

@@ -0,0 +1,72 @@
+import type { PluginInput } from "@opencode-ai/plugin"
+
+import { promptWithModelSuggestionRetry } from "../../shared"
+import { promptAsyncAfterSessionIdle } from "../../shared/prompt-async-gate"
+
+type OpencodeClient = PluginInput["client"]
+
+type PromptAsyncArgs = Parameters<OpencodeClient["session"]["promptAsync"]>[0]
+type PromptRetryClient = Parameters<typeof promptWithModelSuggestionRetry>[0]
+type PromptRetryArgs = Parameters<typeof promptWithModelSuggestionRetry>[1]
+type SessionMessagesArgs = Parameters<OpencodeClient["session"]["messages"]>[0]
+
+export function routeSessionPrompt(args: PromptAsyncArgs, directory: string): PromptAsyncArgs {
+  return {
+    ...args,
+    query: { directory },
+  }
+}
+
+function routePromptRetry(args: PromptRetryArgs, directory: string): PromptRetryArgs {
+  return {
+    ...args,
+    query: { directory },
+  }
+}
+
+export function promptAsyncInDirectory(
+  client: OpencodeClient,
+  args: PromptAsyncArgs,
+  directory: string,
+): Promise<unknown> {
+  const routedArgs = routeSessionPrompt(args, directory)
+  const sessionID = routedArgs.path?.id
+  if (!sessionID) {
+    return Promise.reject(new Error("session id is required for routed promptAsync"))
+  }
+
+  return promptAsyncAfterSessionIdle({
+    client,
+    sessionID,
+    input: routedArgs,
+    source: "background-agent-session-route",
+    settleMs: 0,
+  }).then((result) => {
+    if (result.status === "failed") {
+      throw result.error
+    }
+    if (result.status !== "dispatched") {
+      throw new Error(`promptAsync skipped by gate: ${result.status}`)
+    }
+    return result.response
+  })
+}
+
+export function promptWithRetryInDirectory(
+  client: PromptRetryClient,
+  args: PromptRetryArgs,
+  directory: string,
+): Promise<void> {
+  return promptWithModelSuggestionRetry(client, routePromptRetry(args, directory))
+}
+
+export function messagesInDirectory(
+  client: OpencodeClient,
+  args: SessionMessagesArgs,
+  directory: string,
+): Promise<unknown> {
+  return client.session.messages({
+    ...args,
+    query: { directory },
+  })
+}

src/hooks/interactive-bash-session/parser.ts

@@ -0,0 +1,118 @@
+/**
+ * Quote-aware command tokenizer with escape handling
+ * Handles single/double quotes and backslash escapes
+ */
+export function tokenizeCommand(cmd: string): string[] {
+  const tokens: string[] = []
+  let current = ""
+  let inQuote = false
+  let quoteChar = ""
+  let escaped = false
+
+  for (let i = 0; i < cmd.length; i++) {
+    const char = cmd[i]
+
+    if (escaped) {
+      current += char
+      escaped = false
+      continue
+    }
+
+    if (char === "\\") {
+      escaped = true
+      continue
+    }
+
+    if ((char === "'" || char === '"') && !inQuote) {
+      inQuote = true
+      quoteChar = char
+    } else if (char === quoteChar && inQuote) {
+      inQuote = false
+      quoteChar = ""
+    } else if (char === " " && !inQuote) {
+      if (current) {
+        tokens.push(current)
+        current = ""
+      }
+    } else {
+      current += char
+    }
+  }
+
+  if (current) tokens.push(current)
+  return tokens
+}
+
+/**
+ * Normalize session name by stripping :window and .pane suffixes
+ * e.g., "omo-x:1" -> "omo-x", "omo-x:1.2" -> "omo-x"
+ */
+export function normalizeSessionName(name: string): string {
+  return name.split(":")[0].split(".")[0]
+}
+
+export function findFlagValue(tokens: string[], flag: string): string | null {
+  for (let i = 0; i < tokens.length - 1; i++) {
+    if (tokens[i] === flag) return tokens[i + 1]
+  }
+  return null
+}
+
+/**
+ * Extract session name from tokens, considering the subCommand
+ * For new-session: prioritize -s over -t
+ * For other commands: use -t
+ */
+export function extractSessionNameFromTokens(tokens: string[], subCommand: string): string | null {
+  if (subCommand === "new-session") {
+    const sFlag = findFlagValue(tokens, "-s")
+    if (sFlag) return normalizeSessionName(sFlag)
+    const tFlag = findFlagValue(tokens, "-t")
+    if (tFlag) return normalizeSessionName(tFlag)
+  } else {
+    const tFlag = findFlagValue(tokens, "-t")
+    if (tFlag) return normalizeSessionName(tFlag)
+  }
+  return null
+}
+
+/**
+ * Find the tmux subcommand from tokens, skipping global options.
+ * tmux allows global options before the subcommand:
+ * e.g., `tmux -L socket-name new-session -s omo-x`
+ * Global options with args: -L, -S, -f, -c, -T
+ * Standalone flags: -C, -v, -V, etc.
+ * Special: -- (end of options marker)
+ */
+export function findSubcommand(tokens: string[]): string {
+  // Options that require an argument: -L, -S, -f, -c, -T
+  const globalOptionsWithArgs = new Set(["-L", "-S", "-f", "-c", "-T"])
+
+  let i = 0
+  while (i < tokens.length) {
+    const token = tokens[i]
+
+    // Handle end of options marker
+    if (token === "--") {
+      // Next token is the subcommand
+      return tokens[i + 1] ?? ""
+    }
+
+    if (globalOptionsWithArgs.has(token)) {
+      // Skip the option and its argument
+      i += 2
+      continue
+    }
+
+    if (token.startsWith("-")) {
+      // Skip standalone flags like -C, -v, -V
+      i++
+      continue
+    }
+
+    // Found the subcommand
+    return token
+  }
+
+  return ""
+}

src/hooks/ralph-loop/completion-promise-detector-test-input.ts

@@ -0,0 +1,23 @@
+/// <reference types="bun-types" />
+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
+}