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NCBM
81a30d0e4d
1-based inclusive range replace/delete/append; document Phase B agent and tool updates in CLAUDE.md.
105 lines
5.4 KiB
Markdown
105 lines
5.4 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Project overview
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Plyngent is an LLM chat and agent toolkit (Python 3.14+, PDM-managed). Early development: protocol clients, config, async memory, and a runtime client factory exist. Agent, CLI, web, tools, and router are still planned/stubbed.
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## Commands
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```bash
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pdm install # first-time dependency setup
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pdm sync # sync after pulling changes
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pdm run basedpyright . # type checking (basedpyright, "recommended" strictness)
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pdm run ruff check . # linting
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pdm run ruff format . # formatting
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pdm run pytest # tests (pytest-asyncio auto mode)
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```
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## Architecture
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### Data modeling: `msgspec.Struct`
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All protocol models use `msgspec.Struct` — not dataclasses, not Pydantic. Optional fields use `msgspec.field(default=UNSET)` / `default=UNSET` with type `T | Unset`.
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`typedef.py`: `Unset = UnsetType` (plain assignment so msgspec recognizes it; do **not** use PEP 695 `type Unset = ...`). Multi-struct unions must be **tagged** via `tag_field` / `tag` (e.g. `role`, `type`) for decode. `JSONSchema` is `dict[str, Any]`.
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### Protocol layering (`lmproto/`)
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```
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lmproto/openai_compatible/ ← Base: model, config, client
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lmproto/deepseek/openai_compat/ ← Extends base via inheritance + extra fields
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```
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- **`openai_compatible/model.py`** — tagged chat messages (`SystemChatMessage`, `UserChatMessage`, …), tools, request/response, streaming chunks.
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- **`openai_compatible/client.py`** — `BaseOpenAIClient` / `OpenAIClient` via `niquests` async + SSE.
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- **`openai_compatible/config.py`** — `OpenAIConfig` (token + base URL).
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- **DeepSeek** — `DeepseekOpenAIClient`; models add `reasoning_content`, `prefix`, `ThinkingOptions`.
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### Config (`config/`)
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TOML load/store (`ConfigStore`): `[providers]` tagged union presets, `[database]` section. Default path via platformdirs.
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### Runtime (`runtime/`)
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`create_client(provider)` maps config `Provider` → protocol client. OpenAI / openai-compatible / deepseek(openai convention) supported; anthropic and deepseek anthropic convention raise `ProviderNotSupportedError`.
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### Memory (`memory/`)
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Async SQLAlchemy + aiosqlite. `MemoryStore`: schema init, default local user, sessions, messages stored as msgspec chat message JSON.
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### Agent (`agent/`)
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- **`ChatClient`** Protocol for `chat_completions`.
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- **`@tool` / `ToolRegistry`**: decorator infers JSON Schema from type hints; execute tools by name.
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- **`run_chat_loop`**: multi-round tool loop; default **streaming** text deltas + stream tool-call merge; parallel tools; tool-result char budget; optional `on_limit`.
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- **`ChatAgent`**: optional `MemoryStore` (persist on success only); `stream`; system prompt; `pending_retry_text` + `retry()`.
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- Events: text_delta, assistant_message, tool_call/result, max_rounds, **error**, **cancelled**.
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- Config ``[agent]``: `system_prompt`, `max_tool_result_chars`, `parallel_tools`.
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### Tools (`tools/`)
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Module-level `@tool` handlers. Call `set_workspace_root()` before use.
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- **`workspace`**: path resolve under root; path substring denylist; command basename denylist.
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- **`file`**: `read_file`, `write_file`, `listdir`, `tree`, `edit_replace`, `edit_lineno` (1-based range), `copy_path` / `move_path` / `delete_path`.
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- **`process`**: `run_command` (argv, no shell, timeout, optional stdin/env); PTY `open_pty` / `read_pty` / `write_pty` / `close_pty` (**Unix only**: `pty`+`fork`).
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- PTY: structured status (`alive`/`exit_code`/`data`); `read_pty(..., until=)`; session limit/idle TTL/output budget; close SIGTERM→SIGKILL.
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- CLI limit hooks: interactive confirm to raise tool-loop rounds, PTY session cap, or PTY output budget.
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- **`DEFAULT_TOOLS`**: file + process tool list for a `ToolRegistry`.
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### CLI (`cli/`)
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Click app + readline REPL. Entry: `plyngent` / `python -m plyngent`.
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- **`plyngent chat`**: provider/model selection (flags or interactive), SQLite sessions via config `[database]` (file DB under user data if unset/`:memory:`), resumes latest session by default (`--new` / `--session`).
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- Slash: `/history`, `/sessions`, `/resume`, `/rounds`, `/retry`, …
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- Failed/cancelled turns: not written to DB; Ctrl+C cancels the in-flight turn task; auto-retry 10s/20s/30s (Ctrl+C cancels wait); `/retry` manual.
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- **`plyngent providers`**: list config providers.
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- **`plyngent config path|edit`**: print or open config in `$EDITOR` (`shlex`-split, e.g. `codium --wait`).
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- If no providers and `$EDITOR` is set, chat/providers prompt to edit config then reload.
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- Tools default on (`--tools` / `--no-tools`); workspace defaults to cwd; `--max-rounds` default 32.
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- Readline/editline: Tab completion; input history file under platformdirs user data (`repl_history`).
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### Composition utility: `Forward` descriptor
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`utils/components.py` — `Forward[T]` / `forward()` for attribute forwarding on composed objects.
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### Type annotations are mandatory
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Basedpyright `recommended`. Ruff includes `ANN` (private return types `ANN202` ignored). Prefer PEP 695 aliases except where msgspec requires plain assignment (`Unset`).
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## Commit messages
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Scoped commit messages, not conventional commits:
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```
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<scope>: <brief description>
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```
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Examples: `deps: add fastapi`, `core/mq: fix incorrect message sending`, `router: add routing service for xxx`, `test/webserver: change test client`, `ci/lint: run ruff style check`.
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Check `git log` for the full convention.
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