Route project work through Cursor agy and PI

Why: make the three approved CLIs the only active implementation and test routes

Evidence: adapter unit tests, configuration validation, diff check, and real marker probes for all three profiles

Impact: narrows project routing and fixes agy prompt binding for noninteractive execution

Refs: feature/goal-first-delivery

AGENT-EXECUTION.md

@@ -7,9 +7,10 @@ parser accepts exactly one `agent-execution` fenced block.
 
 U3's execution controller and U4's project wiring are integrated. This file is
 the execution-routing authority for implementation, repair, test, and review.
-Installed CLI identity stays unproven until a host runs the U5 probes one
-profile at a time. A provider that makes no successful stdin write or
-stdout/stderr read for `idle_timeout_seconds` is stopped before
+Active routes are intentionally limited to Cursor, Antigravity (`agy`), and
+PI. `model: auto` lets each CLI use its configured default model; PI therefore
+uses the operator-selected MiniMax default. A provider that makes no successful
+stdin write or stdout/stderr read for `idle_timeout_seconds` is stopped before
 `timeout_seconds`.
 
 ```agent-execution
@@ -26,10 +27,10 @@ execution:
   raw_output_bytes: 10485760
 
 roles:
-  implementation: [cursor, antigravity, claude, codex, pi, kimi, opencode]
-  repair: [cursor, antigravity, codex, claude]
-  test: [pi, antigravity, codex]
-  review: [claude, codex, pi]
+  implementation: [cursor, antigravity, pi]
+  repair: [cursor, antigravity, pi]
+  test: [pi, antigravity, cursor]
+  review: [pi, antigravity, cursor]
 
 profiles:
   cursor:
@@ -44,33 +45,9 @@ profiles:
     model: auto
     enabled: true
 
-  claude:
-    adapter: claude
-    executable: claude
-    model: auto
-    enabled: true
-
-  codex:
-    adapter: codex
-    executable: codex
-    model: auto
-    enabled: true
-
   pi:
     adapter: pi
     executable: pi
     model: auto
     enabled: true
-
-  kimi:
-    adapter: kimi
-    executable: kimi
-    model: auto
-    enabled: true
-
-  opencode:
-    adapter: opencode
-    executable: opencode
-    model: auto
-    enabled: true
 ```

scripts/agent_exec_adapters.py

@@ -121,7 +121,7 @@ BUILTIN_SPECS: dict[str, AdapterSpec] = {
     ),
     "antigravity": AdapterSpec(
         name="antigravity",
-        noninteractive_argv=("--print",),
+        noninteractive_argv=(),
         run_everything_argv=(
             "--dangerously-skip-permissions",
             "--mode",
@@ -130,7 +130,7 @@ BUILTIN_SPECS: dict[str, AdapterSpec] = {
         workspace_flag=None,
         model_flag="--model",
         output_argv=("--output-format", "stream-json"),
-        prompt_transport="positional",
+        prompt_transport="print",
     ),
     "claude": AdapterSpec(
         name="claude",
@@ -289,6 +289,10 @@ def build_invocation(
     elif spec.prompt_transport == "flag":
         argv.extend(["--prompt", prompt])
         prompt_values.add(prompt)
+    elif spec.prompt_transport == "print":
+        # agy 1.3.5 consumes the argv item immediately after --print.
+        argv.extend(["--print", prompt])
+        prompt_values.add(prompt)
     else:
         raise ValueError(f"unsupported prompt_transport: {spec.prompt_transport!r}")
 

tests/test_agent_exec_adapters.py

@@ -224,10 +224,9 @@ class AgentExecAdapterTests(unittest.TestCase):
             profile, cfg, self.workspace, self.unit_packet, self.result_path
         )
         self.assertEqual(
-            inv.argv[:-1],
+            inv.argv[:-2],
             (
                 "agy",
-                "--print",
                 "--dangerously-skip-permissions",
                 "--mode",
                 "auto",
@@ -235,9 +234,14 @@ class AgentExecAdapterTests(unittest.TestCase):
                 "stream-json",
             ),
         )
+        self.assertEqual(inv.argv[-2], "--print")
         _assert_bounded_prompt(self, inv.argv[-1], self.packet_body)
+        self.assertNotIn("--model", inv.argv)
+        self.assertIsNone(inv.stdin)
         self.assertEqual(inv.cwd, self.workspace)
         self.assertEqual(inv.sanitized_display[-1], UNIT_PACKET_MARKER)
+        self.assertEqual(inv.sanitized_display[-2], "--print")
+        self.assertNotIn(self.packet_body, " ".join(inv.sanitized_display))
 
     def test_claude_run_everything_argv(self) -> None:
         _write_fake_cli(self.bindir, "claude", help_text=CLAUDE_HELP)