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deepseek-harness/packages/core/system-prompt/README.md
Tianyi Cui d02e9f1bd6 Reorganize packages into a modular hierarchy
Move the 18 flat packages/<name> packages into role-grouped dirs:
core/, llm/, bash/, session-persistence/, ui/, support/. Group dirs are
pure containers; each package keeps its @deepseek-ai/dsh-* name.

Collapse the per-package tsconfig paths maps (base + typecheck) into one
@deepseek-ai/dsh-* wildcard with a candidate per group, and derive the
publint list from the hierarchy. Update all depth-coupled globs/configs
(workspace, tsdown, vitest, eslint, knip, tsconfig includes/refs,
per-package tsconfigs, generators, doc-script scopes, type-equiv manifest)
and the cross-package/script relative imports in tests.

Fix doc-typecheck's workspacePaths() to parse tsconfig JSONC via the
TypeScript API instead of a regex comment-strip, which corrupted the
new wildcard `/*/` path candidates.

WIP: doc cross-links and package/RFC docs still to update.
2026-06-20 22:55:20 +08:00

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Markdown

# dsh-system-prompt
System prompt assembly registry. Plugins contribute ordered text sections and tool-schema providers; the agent loop calls `assemble()` once per step.
## Service: `SystemPrompt` (ctx key: `systemPrompt`)
### Public API
- `ctx.systemPrompt.section(section: PromptSection): () => void` Contribute a section. Disposed with the calling fiber.
- `ctx.systemPrompt.tools(provider: () => ToolSchema[]): () => void` Contribute tool schemas (evaluated at each assembly). Disposed with the calling fiber.
- `ctx.systemPrompt.assemble(): Promise<PromptAssembly>` Assemble the current prompt. Runs through the `system-prompt/assemble` waterfall.
### Events
| Event | Mode | Purpose |
|---|---|---|
| `system-prompt/assemble` | waterfall | Mutate/extend the assembly before it reaches the model |
| `system-prompt/change` | emit | A section or tool provider was registered or unregistered |
### Key types
- `PromptSection``{ name, order, text: string | (() => string) }`. Sections are concatenated in ascending `order`.
- `PromptAssembly``{ sections: PromptSection[], tools: ToolSchema[] }`. Tool schemas are part of the assembly by design: "what the model is told it can do" is one coherent thing, even though adapters transmit schemas as a separate wire field.
- `renderPrompt(assembly)` — joins section texts with blank lines.
Merge-extensible: plugins can declare extra fields on `PromptAssembly` via declaration merging.
### Extension points
- Section providers: AGENTS.md reader, cwd notifier, persona config, etc.
- Tool schema providers: `ToolRegistry` registers itself as a tool provider automatically.
- The `system-prompt/assemble` waterfall: mutate or replace the assembly (system-prompt configurability, dynamic tool filtering).
### What is NOT here
- Any hardcoded prompt text — every section comes from plugins.
- Prompt compaction (belongs on the `agent/request` seam in `dsh-agent`).