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/xskill-dev

Use when developing xskill itself — editing agent tool docstrings, changing the generate agent tool surface, or verifying what schema the Agno framework actually sends to the model. Covers the dump_schema workflow and where tool descriptions come from.

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xskill
1282 skills
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$ npx -y skills add SkillNerds/xskill --skill xskill-dev --agent claude-code

How it fires

How this skill gets triggered: by you, by Claude, or both.

  • Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
  • You can call itInvoke it directly when you want it.
  • Slash command/xskill-dev

Context preview

The summary Claude sees to decide when to auto-load this skill.

Use when developing xskill itself — editing agent tool docstrings, changing the generate agent tool surface, or verifying what schema the Agno framework actually sends to the model. Covers the dump_schema workflow and where tool descriptions come from.

SKILL.md

xskill-dev.SKILL.md
name: xskill-dev
description: Use when developing xskill itself — editing agent tool docstrings, changing the generate agent tool surface, or verifying what schema the Agno framework actually sends to the model. Covers the dump_schema workflow and where tool descriptions come from.

Developing xskill

工具描述从哪来

Agno 框架直接把 `@tool` 装饰的 Python 函数 docstring 当作发给模型的工具描述, 参数说明也从 docstring 里解析。也就是说 docstring 就是模型上下文的一部分:

  • 写给模型看,不写内部实现细节(内部细节放代码注释)。
  • 系统提示词里不要再抄一遍工具清单,框架会自动注入 schema,抄了会漂移。
  • generate 代理的轨迹工具在 `src/xskill/agents/traj_tools.py`,

通用工具在 `src/xskill/agents/agent_tools.py`, wiki 工具在 `src/xskill/agents/llm_wiki.py`。

改完 docstring 必跑:dump_schema

改任何工具的 docstring 或签名之后,跑一次导出脚本,看 Agno 实际生成的 schema 是什么样,确认模型看到的和你想的一致:

/home/admin/xskill/.venv/bin/python \
  scratch/standalone-generate/tool_surface/dump_schema.py

输出写在同目录 `SCHEMA.txt`。对照检查:

  • 每个工具的 description 是否完整、有没有被截断或混进实现细节;
  • 参数名、类型、必填项是否与函数签名一致;
  • 新增或删除工具后,工具总数是否符合预期(generate 面当前是 16 个)。

`SCHEMA.txt` 可以进 code review diff,reviewer 能直接看到模型侧的变化。

上下文预算的流式陷阱

`_wrap_with_context_mgmt` 只包 `model.invoke`。任何用 `stream=True` 跑 agent 的路径都会走 `invoke_stream`,完全绕过 compact、spill 和超长兜底,模型跑在 后端原生窗口里(DeepSeek 是 1M),而且日志里一条 CONTEXT 事件都不会有。 产品 GenerateAgent 用非流式 `agent.run()` 所以没事;写实验脚本、demo、 新 agent 入口时必须非流式,或先给 `invoke_stream` 补包装。判断预算机制 是否真在跑,看 agent.log 里有没有 CONTEXT 事件(Compacted context、 Spilled、Compact was not needed 任意一种)。

llm_cfg 里开剪裁的键名是 `enable_spill`,不是 `spill`。

相关材料

  • 工具面设计与取舍:`docs/plans/2026-08-27-generate-tool-surface.md`
  • 独立实验台(Phoenix 观测、变体对比):`scratch/standalone-generate/`,

入口 `run_experiment.py`,`product` 变体加载产品 traj_tools 与产品 SYSTEM_PROMPT,是验证产品行为的首选变体。

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