feat(athena): dual prompt selection with MODE=all

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/agents/athena/agent.test.ts

@@ -0,0 +1,107 @@
+/// <reference types="bun-types" />
+
+import { afterEach, beforeEach, describe, expect, it } from "bun:test"
+import { createAthenaAgent } from "./agent"
+
+describe("createAthenaAgent", () => {
+  const originalEnv = process.env.OPENCODE_CLI_RUN_MODE
+
+  beforeEach(() => {
+    delete process.env.OPENCODE_CLI_RUN_MODE
+  })
+
+  afterEach(() => {
+    if (originalEnv !== undefined) {
+      process.env.OPENCODE_CLI_RUN_MODE = originalEnv
+    } else {
+      delete process.env.OPENCODE_CLI_RUN_MODE
+    }
+  })
+
+  describe("#given the agent mode", () => {
+    describe("#when accessing the static mode property", () => {
+      it("#then equals 'all' to support both primary and subagent contexts", () => {
+        expect(createAthenaAgent.mode).toBe("all")
+      })
+    })
+  })
+
+  describe("#given the agent config", () => {
+    describe("#when creating the agent with a model", () => {
+      it("#then returns config with the specified model", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.model).toBe("anthropic/claude-opus-4-6")
+      })
+
+      it("#then sets temperature to 0.1", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.temperature).toBe(0.1)
+      })
+
+      it("#then includes tool restrictions denying call_omo_agent", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.permission).toBeDefined()
+      })
+
+      it("#then includes a description", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.description).toContain("synthesis strategist")
+      })
+    })
+  })
+
+  describe("#given default invocation (no CLI mode)", () => {
+    describe("#when OPENCODE_CLI_RUN_MODE is not set", () => {
+      it("#then selects the interactive prompt", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.prompt).toContain("Question tool")
+      })
+
+      it("#then contains interactive workflow sections", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.prompt).toContain("Step 2: Council setup (default flow before launch).")
+        expect(config.prompt).toContain("<agent_handoff>")
+      })
+
+      it("#then does not contain non-interactive output contract", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.prompt).not.toContain("<athena_council_result>")
+      })
+    })
+  })
+
+  describe("#given CLI run mode", () => {
+    describe("#when OPENCODE_CLI_RUN_MODE is 'true'", () => {
+      beforeEach(() => {
+        process.env.OPENCODE_CLI_RUN_MODE = "true"
+      })
+
+      it("#then selects the non-interactive prompt", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.prompt).toContain("<athena_council_result>")
+      })
+
+      it("#then contains non-interactive constraints", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.prompt).toContain("NEVER use the Question tool")
+      })
+
+      it("#then does not contain interactive agent handoff section", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.prompt).not.toContain("<agent_handoff>")
+      })
+    })
+
+    describe("#when OPENCODE_CLI_RUN_MODE is 'false'", () => {
+      beforeEach(() => {
+        process.env.OPENCODE_CLI_RUN_MODE = "false"
+      })
+
+      it("#then selects the interactive prompt", () => {
+        const config = createAthenaAgent("anthropic/claude-opus-4-6")
+        expect(config.prompt).toContain("Question tool")
+        expect(config.prompt).not.toContain("<athena_council_result>")
+      })
+    })
+  })
+})

src/agents/athena/index.ts

@@ -8,3 +8,5 @@ export {
 } from "./council-runtime-guidance"
 export type { CouncilIntent } from "./council-runtime-guidance"
 export { COUNCIL_DEFAULTS } from "./constants"
+export { ATHENA_INTERACTIVE_PROMPT } from "./interactive-prompt"
+export { ATHENA_NON_INTERACTIVE_PROMPT } from "./non-interactive-prompt"