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mcp: remove the restart/kill/start/update/get_logs agent verbs

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Container lifecycle from inside an agent goes away: an agent no longer
starts, stops, restarts or rebuilds a container in its subtree, and no
longer reads another container's journal. Those are operator actions —
the dashboard and hivectl keep their own paths to the same job-queue
and hive-priv plumbing, which is why none of that machinery is removed
here, only the five MCP verbs and what they alone reached.

What went with them: the `Request` variants and `Response::Logs` on the
agent socket, the five tool definitions and their arg structs, the four
lifecycle handlers plus `handle_get_logs`, and `require_descendant` —
the topology guard those five were the only remaining callers of.
`ToolGroup::Diagnostics` goes too: `get_logs` was its only tool, so it
would otherwise be a grantable group that grants nothing. `lifecycle`
stays, now carrying `list_containers` alone.

An agent that gets a `needs_update` or `container_crash` helper event
has no remedy of its own left, so the system prompt and the docs now
send it to the operator instead of to a tool that no longer exists.

Refs #4480
This commit is contained in:
atlas 2026-09-19 03:47:18 +02:00 • committed by mara
commit 87970a8c93
17 changed files with 48 additions and 450 deletions
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37
hive-agent-mcp/src/mcp/args.rs
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@ -94,15 +94,9 @@ pub struct CompactArgs {
}
// -----------------------------------------------------------------------------
// Privileged tool arg types (lifecycle, approvals, scheduling, diagnostics)
// Privileged tool arg types (lifecycle, approvals, scheduling)
// -----------------------------------------------------------------------------
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct KillArgs {
/// Sub-agent name (without the `h-` container prefix).
pub name: String,
}
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct SetStatusArgs {
/// Status text to display on the dashboard card. Pass an empty string to clear.
@ -125,24 +119,6 @@ pub struct GetAgentMetaArgs {
pub name: Option<String>,
}
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct StartArgs {
/// Sub-agent name (without the `h-` container prefix).
pub name: String,
}
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct RestartArgs {
/// Sub-agent name (without the `h-` container prefix).
pub name: String,
}
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct UpdateArgs {
/// Sub-agent name (without the `h-` container prefix).
pub name: String,
}
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct CancelLooseEndArgs {
/// Which kind of thread to cancel — `"reminder"` for a scheduled
@ -265,17 +241,6 @@ pub struct EditScheduleArgs {
pub targets_remove: Option<Vec<String>>,
}
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct GetLogsArgs {
/// Logical agent name to fetch logs for (e.g. `gui`, `iris`).
/// hive-c0re maps it to the underlying machine name (`h-gui`)
/// itself — pass the plain agent name, not the `h-` form.
pub agent: String,
/// How many journal lines to return (default: 50, max: 500).
#[serde(default)]
pub lines: Option<u32>,
}
/// Arguments for `get_host_journal` (capability-gated: `read_host_journal`).
#[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
pub struct GetHostJournalArgs {