csswitch-external-skill-tools

name	csswitch-external-skill-tools
description	CSSwitch 外部 Skill 安装与卸载的强制路由。MUST use in CSSwitch-managed Claude Science whenever the user asks to install, import, add, uninstall, remove, or delete an external Skill.

CSSwitch external Skill tools

This Skill only routes external Skill operations. It is not an authoring or publishing workflow. For every request in scope, use the CSSwitch external Skill connector and its matching tool. Do not load customize.

Install or import

1. Accept a public GitHub repository root, ref root, Plugin/Skill collection, or exact Skill directory URL. Preserve it exactly. If the user supplied only a name, ask for the URL; do not search for or guess a source.
2. Load the generated connector Skill mcp-csswitch-skill-installer.
3. Follow that connector's API and call install_external_skill with the exact source_url. The equivalent REPL call is:

host.mcp(
    "csswitch-skill-installer",
    "install_external_skill",
    source_url=source_url,
)

Never call host.skills.edit or host.skills.publish as a fallback. Never use Add Skill ZIP or marketplace.importSkills as a fallback. Never download the Skill yourself, use shell/Python filesystem APIs, use a GitHub credential, or pass staged files to CSSwitch. The CSSwitch host owns URL resolution, one-archive download, validation, atomic commit, and OPERON attachment. Repository and collection URLs may install a Nature-like bundle; this installs only its Skill collection and support resources, not hooks, MCP, agents, or a complete Claude Plugin runtime.

Uninstall, remove, or delete

1. Extract the exact Skill name from the user's current request. There is no default or hard-coded Skill name.
2. If no exact name is present, or more than one installed name could apply, ask the user. Never infer a filesystem path.
3. Load the generated connector Skill mcp-csswitch-skill-installer.
4. Follow that connector's API and call uninstall_external_skill with the exact skill_name. The equivalent REPL call is:

host.mcp(
    "csswitch-skill-installer",
    "uninstall_external_skill",
    skill_name=skill_name,
)

If the result is BUNDLE_UNINSTALL_CONFIRMATION_REQUIRED, do not call any uninstall or detach tool again yet. Show the user the returned bundle_name and complete affected_skill_names list, explain that the operation is whole-bundle only, and ask for an explicit confirm or cancel decision. If the user cancels, stop without another tool call. If the user explicitly confirms, call the same tool once more with the same skill_name and the exact returned bundle_id as confirm_bundle_id:

host.mcp(
    "csswitch-skill-installer",
    "uninstall_external_skill",
    skill_name=skill_name,
    confirm_bundle_id=bundle_id,
)

The confirmed call re-finds and re-verifies the installed bundle. If it returns a new BUNDLE_UNINSTALL_CONFIRMATION_REQUIRED, show the new membership and ask again. Never infer or retain an older bundle ID, never confirm on the user's behalf, and never offer partial physical deletion of bundle members.

Never call host.skills.delete, skills.deleteDraft, host.skills.edit, shell commands, Python filesystem APIs, or manual filesystem deletion as a fallback. Do not locate similarly named directories outside the CSSwitch-managed Science data directory. If the MCP call fails, report that failure and stop.

Result handling

For HOST_ACCESS_REQUIRED, submit the returned request.payload exactly once under its original request ID. Then use poll_external_skill_request with that same request_id; omit last_sequence on the first call, and pass the previous PROCESSING.sequence on later calls. The polling tool waits inside the gateway and returns bounded phase, heartbeat timestamps, elapsed time, and deadline_at, or the final response. Do not read the bridge files repeatedly, run sleep, or start a shell/Python polling loop. Never write the request again and never call the install/uninstall tool again merely because a bundle is still downloading. Success, failure, timeout, and interrupted-host recovery all arrive as a final response after .processing is cleared. REQUEST_INTERRUPTED is final and retryable through one new MCP call; CSSwitch will verify any possible committed state before changing files again.

For INSTALLED_ATTACHED_VERIFY_REQUIRED, call skill(skill_name) in the current conversation. Report the Skill usable only if that call succeeds. For BUNDLE_INSTALLED_ATTACHED, report that CSSwitch installed and read back the OPERON binding for the returned number of Skills. Do not call every member with skill() and do not claim that Plugin hooks or MCP servers were installed. For FILES_COMMITTED_ATTACH_REQUIRED or ATTACH_STATE_UNCERTAIN, call install_external_skill again with the same URL to let CSSwitch verify the committed content and retry attachment. Never call host.agents.attach_skill manually.

For single-Skill uninstall, follow the native detach step explicitly returned by the connector, then verify that skill(skill_name) no longer loads. A BUNDLE_UNINSTALL_CONFIRMATION_REQUIRED result is non-mutating and requires the explicit two-step flow above. A BUNDLE_UNINSTALLED_DETACHED result already means the entire owning bundle was batch-detached and quarantined; do not detach its members again. Report every response faithfully.