Fantasy v0.21.0 natively includes gpt-5.5 and other newer models in
its responsesModelIDs/responsesReasoningModelIDs lists, making our
workaround unnecessary.
- Delete responses_models.go (go:linkname hack + RegisterResponsesModels)
- Delete responses_models_test.go
- Replace isResponsesAPIModel/isResponsesReasoningModel heuristics with
direct openai.IsResponsesModel/openai.IsResponsesReasoningModel calls
- Remove RegisterResponsesModels calls from registry init/reload
- Remove hack documentation from AGENTS.md
- Update all deps (fantasy v0.21.0, smithy-go, ultraviolet, etc.)
Fantasy's hardcoded responsesModelIDs list gates whether a model uses
the Responses API or Chat Completions code path. When a new model
(e.g. gpt-5.5) is added via `kit update-models` but fantasy hasn't
been updated yet, the type mismatch between *ResponsesProviderOptions
and *ProviderOptions causes a crash.
- Add isResponsesAPIModel()/isResponsesReasoningModel() helpers that
supplement fantasy's checks with prefix-based heuristics for modern
OpenAI model families (gpt-4.1+, gpt-5+, o-series, codex, chatgpt)
- Add RegisterResponsesModels() using go:linkname to append missing
model IDs from our database into fantasy's internal slices at init
time and after ReloadGlobalRegistry()
- Replace all direct openai.IsResponsesModel/IsResponsesReasoningModel
calls in providers.go with the new helpers
- Merge embedded + cached model databases instead of cache-only fallback
- Bump fantasy v0.19.0 -> v0.20.0 to match existing import usage
- Document the technique and model-family update process in AGENTS.md
Rename public SDK symbols to use generic LLM terminology instead of
exposing the internal dependency name (charm.land/fantasy):
Public API renames (with deprecated wrappers for backward compat):
- ConvertToFantasyMessages() → ConvertToLLMMessages()
- ConvertFromFantasyMessage() → ConvertFromLLMMessage()
- GetFantasyProviders() → GetLLMProviders()
New type alias:
- LLMFilePart = fantasy.FilePart (eliminates need for direct fantasy import)
- PromptResultWithFiles() signature now uses LLMFilePart
Internal renames (with deprecated wrappers):
- ModelsRegistry.GetFantasyProviders() → GetLLMProviders()
- TreeManager.GetFantasyMessages() → GetLLMMessages()
- TreeManager.AppendFantasyMessage() → AppendLLMMessage()
- TreeManager.AddFantasyMessages() → AddLLMMessages()
- Message.ToFantasyMessages() → ToLLMMessages()
- FromFantasyMessage() → FromLLMMessage()
- npmToFantasyProvider → npmToLLMProvider
- isProviderFantasySupported() → isProviderLLMSupported()
All internal callers migrated to new names. ~30 comments updated
to remove Fantasy references across pkg/kit/, internal/agent/,
internal/models/, internal/message/, internal/session/.
Documentation updates:
- AGENTS.md: added Public SDK rules section (no dependency leakage,
naming conventions, deprecation pattern)
- README.md: removed Fantasy references
- pkg/kit/README.md: full rewrite with current API surface
- skills/kit-sdk/SKILL.md: updated examples and type references
- www/pages/providers.md, www/pages/cli/commands.md: updated
Drop the --prompt/-p flag entirely. Non-interactive mode is now
triggered by passing positional arguments:
kit "Explain this"
kit @file.go "Review this" --json
kit @a.go @b.go --quiet
Updated extension examples (kit-kit.go, subagent-widget.go) to pass
the prompt as a positional arg. Updated AGENTS.md and README.md.
Port of Pi Pi (meta-agent with parallel expert subprocesses) to Kit's
extension system. Includes expert grid widget, query_experts tool,
custom footer, tool renderer, and orchestrator system prompt injection.
Also updates AGENTS.md with Yaegi gotchas, BubbleTea patterns, testing
recipes, and extension architecture notes.
Fixes golangci-lint issues: modernize min/max in overlay.go, replace
deprecated GetExtRunner() with new GetExtensionContext() SDK method,
remove broken --model flag from expert subprocess.
Restructure the codebase so the CLI app consumes the SDK rather than
the SDK wrapping CLI internals. This eliminates the circular dependency
(sdk -> cmd -> sdk) and establishes pkg/kit as the canonical API.
Key changes:
- Create pkg/kit/ with InitConfig, SetupAgent, BuildProviderConfig
extracted from cmd/root.go and cmd/setup.go as parameterized functions
- Move sdk/kit.go -> pkg/kit/kit.go (remove cmd import, use local calls)
- Move sdk/types.go -> pkg/kit/types.go
- Move main.go -> cmd/kit/main.go (standard Go project layout)
- cmd/root.go and cmd/setup.go now delegate to pkg/kit, injecting
CLI-specific state (quietFlag) via the Quiet field on AgentSetupOptions
- Add setSDKDefaults() for cobra-free SDK usage (viper defaults)
- Fix .gitignore: kit -> /kit (was blocking cmd/kit/ and pkg/kit/)
- Update .goreleaser.yaml, Taskfile.yml, AGENTS.md, contribute/build.sh,
README.md for new cmd/kit entrypoint and pkg/kit import paths
- Add plans/ with 10 detailed SDK revamp plans and Taskfile.yml
- Delete sdk/ directory entirely
Ed Zynda