Register certified Harnesses through adapter declarations

CONTRIBUTING.md

@@ -154,8 +154,6 @@ Provider bootstrap, Runtime images and Harness adapters must agree on these name
 
 Historical Runtime and project-version upgrades are not supported. Do not ship retired installer conversion implementations; preserve rejection guards under the [installer lifecycle contract](deploy/install/README.md#versions-and-the-lock). Preserve older installations, Runtime files, provider resources and Session history; install the current release separately. Startup never verifies and rebinds historical allocations or accepts node deployments without a valid specification. Keep the original Core responsible for unresolved resources; see the [installation version policy](docs/getting-started/operations.md#installation-version-policy). Use this release's template builder for new E2B templates. Ordinary current-version database initialization uses the migration runner.
 
-The dormant Pi adapter keeps its `parsar` provider slug because the separate Parsar product pins model selections to that identity. This is a product boundary exception for the name guard, like the skill-upload integration.
-
 Build the MiniMax companion from this revision's pinned patched native sources.
 
 ## Branding

apps/daemon/internal/agent/binpath/binpath.go

@@ -1,7 +1,7 @@
 // Package binpath resolves which executable each agent adapter should
 // probe and spawn.
 //
-// By default every engine is looked up by bare name on PATH ("claude",
+// By default every engine is looked up by bare name on PATH ("codex",
 // "codex", ...). That breaks in images where PATH is not under our
 // control: e2b's base image, for instance, ships its own
 // /usr/local/bin entries that can shadow the ones we install, and a
@@ -13,8 +13,8 @@
 // The env overrides below let an image or operator pin an absolute path
 // instead. They are read in ONE place so the version probe
 // (CheckCLIAvailable) and the run-time spawn (sessionConfig) can never
-// disagree: a probe that succeeds against /custom/claude while the run
-// spawns PATH's `claude` would advertise a capability the daemon cannot
+// disagree: a probe that succeeds against /custom/codex while the run
+// spawns PATH's `codex` would advertise a capability the daemon cannot
 // actually honour.
 package binpath
 
@@ -26,20 +26,14 @@ import (
 // Env var names for the per-engine executable overrides. Empty or unset
 // means "look up the default name on PATH".
 const (
-	EnvClaudeCode = "OAC_RUNTIME_CLAUDE_BIN"
-	EnvCodex      = "OAC_RUNTIME_CODEX_BIN"
-	EnvPi         = "OAC_RUNTIME_PI_BIN"
-	EnvOpenCode   = "OAC_RUNTIME_OPENCODE_BIN"
-	EnvMCode      = "OAC_RUNTIME_MCODE_BIN"
+	EnvCodex = "OAC_RUNTIME_CODEX_BIN"
+	EnvMCode = "OAC_RUNTIME_MCODE_BIN"
 )
 
 // Default executable names, used when the matching env var is unset.
 const (
-	DefaultClaudeCode = "claude"
-	DefaultCodex      = "codex"
-	DefaultPi         = "pi"
-	DefaultOpenCode   = "opencode"
-	DefaultMCode      = "mcode"
+	DefaultCodex = "codex"
+	DefaultMCode = "mcode"
 )
 
 // resolve returns the trimmed env override when set, else fallback.
@@ -50,17 +44,8 @@ func resolve(envVar, fallback string) string {
 	return fallback
 }
 
-// ClaudeCode returns the claude executable to probe and spawn.
-func ClaudeCode() string { return resolve(EnvClaudeCode, DefaultClaudeCode) }
-
 // Codex returns the codex executable to probe and spawn.
 func Codex() string { return resolve(EnvCodex, DefaultCodex) }
 
-// Pi returns the pi executable to probe and spawn.
-func Pi() string { return resolve(EnvPi, DefaultPi) }
-
-// OpenCode returns the opencode executable to probe and spawn.
-func OpenCode() string { return resolve(EnvOpenCode, DefaultOpenCode) }
-
 // MCode returns the mcode executable to probe and spawn.
 func MCode() string { return resolve(EnvMCode, DefaultMCode) }

apps/daemon/internal/agent/binpath/binpath_test.go

@@ -11,11 +11,8 @@ func TestResolvers(t *testing.T) {
 		override   string
 		wantPinned string
 	}{
-		{name: "claude", envVar: EnvClaudeCode, fallback: DefaultClaudeCode, resolve: ClaudeCode, override: "  /opt/agents/claude  ", wantPinned: "/opt/agents/claude"},
 		{name: "codex", envVar: EnvCodex, fallback: DefaultCodex, resolve: Codex, override: "  /opt/agents/codex  ", wantPinned: "/opt/agents/codex"},
 		{name: "mcode", envVar: EnvMCode, fallback: DefaultMCode, resolve: MCode, override: "  /opt/agents/mcode  ", wantPinned: "/opt/agents/mcode"},
-		{name: "pi", envVar: EnvPi, fallback: DefaultPi, resolve: Pi, override: "  /opt/agents/pi  ", wantPinned: "/opt/agents/pi"},
-		{name: "opencode", envVar: EnvOpenCode, fallback: DefaultOpenCode, resolve: OpenCode, override: "  /opt/agents/opencode  ", wantPinned: "/opt/agents/opencode"},
 	}
 
 	for _, tt := range tests {