feat: add defaultModelTier for per-expert provider-aware model selection

.changeset/default-model-tier.md

@@ -0,0 +1,14 @@
+---
+"@perstack/core": patch
+"@perstack/runtime": patch
+"@perstack/tui": patch
+"@perstack/react": patch
+"@perstack/perstack-toml": patch
+"@perstack/skill-manager": patch
+"@perstack/log": patch
+"@perstack/installer": patch
+"@perstack/filesystem-storage": patch
+"@perstack/tui-components": patch
+---
+
+Add `defaultModelTier` to expert config for provider-aware model selection ("low", "middle", "high")

e2e/experts/bundled-base.toml

@@ -1,15 +1,14 @@
 # E2E test configuration for bundled base skill with InMemoryTransport
 # Tests that the bundled @perstack/base uses in-memory transport (no process spawn)
 
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 # Default bundled base - uses InMemoryTransport
 [experts."e2e-bundled-base"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for bundled base with InMemoryTransport"
 instruction = """

e2e/experts/cli-commands.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-publish-test"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for CLI publish command validation"
 instruction = """
@@ -19,6 +18,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-cli-simple"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for CLI log command validation"
 instruction = """

e2e/experts/continue-resume.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-continue"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for continue functionality"
 instruction = """
@@ -29,6 +28,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion", "think"]
 
 [experts."e2e-resume"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for resume-from functionality"
 instruction = """

e2e/experts/delegate-chain.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-delegate-chain"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for delegate chain"
 instruction = """
@@ -21,6 +20,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."@e2e-delegate-chain/level1"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "First level delegate expert"
 instruction = """
@@ -36,6 +36,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."@e2e-delegate-chain/level2"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "Second level delegate expert"
 instruction = """

e2e/experts/error-handling.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-tool-error-recovery"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for tool error recovery"
 instruction = """
@@ -20,6 +19,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion", "readTextFile"]
 
 [experts."e2e-invalid-delegate"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert with nonexistent delegate"
 instruction = """

e2e/experts/errors.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-mcp-error"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert with broken MCP skill"
 instruction = """
@@ -24,6 +23,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-invalid-provider"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for invalid provider testing"
 instruction = """

e2e/experts/global-runtime.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-global-runtime"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for global runtime configuration"
 instruction = """

e2e/experts/lockfile.toml

@@ -1,14 +1,13 @@
 # E2E test configuration for lockfile functionality
 # Tests perstack install and lockfile-based execution
 
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-lockfile"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for lockfile functionality"
 instruction = """

e2e/experts/mixed-tools.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-mixed-tools"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for mixed tool calls (MCP + Delegate + Interactive)"
 instruction = """
@@ -39,6 +38,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion", "think"]
 
 [experts."@e2e-mixed-tools/helper"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test helper expert"
 instruction = """

e2e/experts/multi-modal.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-pdf-reader"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for PDF file reading"
 instruction = """
@@ -22,6 +21,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion", "readPdfFile"]
 
 [experts."e2e-image-reader"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for image file reading"
 instruction = """

e2e/experts/parallel-delegate.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-parallel-delegate"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for parallel delegation"
 instruction = """
@@ -21,6 +20,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion", "think"]
 
 [experts."@e2e-parallel-delegate/math"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "Math delegate expert"
 instruction = """
@@ -34,6 +34,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."@e2e-parallel-delegate/text"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "Text processing delegate expert"
 instruction = """

e2e/experts/parallel-mcp.toml

@@ -1,11 +1,10 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 [experts."e2e-parallel-mcp"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for parallel MCP tool calls"
 instruction = """

e2e/experts/providers.toml

@@ -1,4 +1,5 @@
 [experts."e2e-providers"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for multi-provider testing"
 instruction = """

e2e/experts/reasoning-budget.toml

@@ -8,6 +8,7 @@ envPath = [".env", ".env.local"]
 # =============================================================================
 
 [experts."e2e-reasoning-anthropic-minimal"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Anthropic reasoning with minimal budget"
 instruction = """
@@ -22,6 +23,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-anthropic-low"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Anthropic reasoning with low budget"
 instruction = """
@@ -36,6 +38,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-anthropic-medium"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Anthropic reasoning with medium budget"
 instruction = """
@@ -50,6 +53,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-anthropic-high"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Anthropic reasoning with high budget"
 instruction = """
@@ -68,6 +72,7 @@ pick = ["attemptCompletion"]
 # =============================================================================
 
 [experts."e2e-reasoning-openai-minimal"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for OpenAI reasoning with minimal budget"
 instruction = """
@@ -82,6 +87,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-openai-low"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for OpenAI reasoning with low budget"
 instruction = """
@@ -96,6 +102,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-openai-medium"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for OpenAI reasoning with medium budget"
 instruction = """
@@ -110,6 +117,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-openai-high"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for OpenAI reasoning with high budget"
 instruction = """
@@ -128,6 +136,7 @@ pick = ["attemptCompletion"]
 # =============================================================================
 
 [experts."e2e-reasoning-google-minimal"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Google reasoning with minimal budget"
 instruction = """
@@ -142,6 +151,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-google-low"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Google reasoning with low budget"
 instruction = """
@@ -156,6 +166,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-google-medium"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Google reasoning with medium budget"
 instruction = """
@@ -170,6 +181,7 @@ packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
 [experts."e2e-reasoning-google-high"]
+defaultModelTier = "low"
 version = "1.0.0"
 description = "E2E test expert for Google reasoning with high budget"
 instruction = """

e2e/experts/runtime-version-future.toml

@@ -1,12 +1,11 @@
-model = "claude-haiku-4-5"
-
 [provider]
 providerName = "anthropic"
 
 envPath = [".env", ".env.local"]
 
 # Expert requiring future version (validation failure)
 [experts."e2e-runtime-future"]
+defaultModelTier = "low"
 version = "1.0.0"
 minRuntimeVersion = "v99.0"
 instruction = "Call attemptCompletion."
@@ -19,6 +18,7 @@ pick = ["attemptCompletion"]
 
 # Chain with nested future version: root(v1.0) -> nested(v99.0)
 [experts."e2e-runtime-chain-future"]
+defaultModelTier = "low"
 version = "1.0.0"
 minRuntimeVersion = "v1.0"
 instruction = """