26 lines
2.2 KiB
Markdown
26 lines
2.2 KiB
Markdown
# @deepseek-ai/dsh-tool-skill
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The model-facing skill catalog and `skill` tool.
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Requires `ctx.tools` and `ctx.skills` (`inject: ['tools', 'skills']`).
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## Session-prefix catalog
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The plugin contributes one user-role `<system-reminder>` catalog through `agent/session-prefix`. It resolves skills for the calling session's cwd, forwards the prefix abort signal to discovery, and lists only sorted `name` and `description` entries; skill bodies, paths, sources, providers, and `whenToUse` hints remain outside the catalog. The catalog is omitted when no model-invocable skills are available, and also when that agent's tool view restricts away the shipped `skill` tool or resolves a same-name scoped shadow instead. This exact-definition check keeps prompt guidance, the model-visible schema, and executable dispatch aligned.
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`catalogDescriptionMaxLength` controls normalized, XML-escaped catalog descriptions. Its default is `500` and values must be integers of at least `3`, which reserves room for a truncation ellipsis. The [session-prefix RFC](../../../docs/rfc/implemented/feature/2026-07-07-session-prefix.md) defines the request-only, header-logged lifecycle of this message.
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## Tool: `skill`
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| Arg | Type | Notes |
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| `name` | string (required) | Exact kebab-case skill name from the available skills listing. |
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Execution uses the calling agent's `session.header.cwd` so workspace-sensitive providers resolve the winning skill. A successful call returns one text result containing `<skill_content name="...">`, `<skill_resources>`, and `<skill_instructions>`.
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Resource guidance resolves only paths or URLs explicitly referenced by the instructions against `resourceBase`; scripts, references, and assets load on demand, and the result does not enumerate a skill directory. Local providers may supply a directory, while remote or embedded providers may supply a URL or opaque loading guidance.
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An unresolved name reports that the skill is unknown or no longer available. Invalid names and `disableModelInvocation: true` skills produce distinct error results.
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The tool does not call `agent.inject()` in v1. Its result is already recorded as the tool result and becomes available to the next model step without duplicating the content as synthetic context.
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