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pve_ceph_cmd_safety

Checks Ceph's heuristic for safe stop or destroy of mon/mds/osd instances. Returns safe boolean and optional reason.

Instructions

READ-ONLY: Ceph's own heuristic advisory on whether it is currently safe to stop or destroy a mon/mds/osd instance. ADVISORY ONLY — never a gate: a plan citing this result must still render when Ceph itself is unreachable/unhealthy (an unreachable check becomes an honest "cmd-safety unavailable" note, never a fabricated safe=true).

GET /nodes/{node}/ceph/cmd-safety?action=&service=&id=. Smoke-confirm: shape not live-verified — expected {safe: bool, status?: str} per schema truth (status is the human-readable reason when NOT safe; absent when Ceph returned no message).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nodeNoPVE node name to query; defaults to the configured node if omitted.
actionYesAction to check: 'stop' or 'destroy'.
serviceYesService type: 'osd', 'mon', or 'mds'.
service_idYesID of the service instance to check (e.g. an OSD number, or a mon/mds name).
proximo_targetNoWhich configured Proxmox target to run this call against — a target name from your multi-target config (a specific PVE/PBS/PMG/PDM box). Omit to use the single/default target from the environment; the selection applies only to this call.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden and excels: it explicitly labels the tool as READ-ONLY and ADVISORY ONLY, details behavior when Ceph is unreachable (never fabricates safe=true), and describes the expected output shape with safe and optional status fields.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise yet comprehensive, front-loading the critical purpose and caveats in the first sentence. Every sentence adds value: purpose, advisory nature, behavior under failure, and output shape. No wasted words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite lacking annotations, the description covers purpose, behavioral transparency, output details, and usage guidance. The 5 parameters are fully described in the schema, and the output is hinted. It is sufficiently complete for the agent to understand when and how to use the tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description references the endpoint URL with parameter placeholders but does not add new semantics beyond what the schema already provides for each parameter.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description explicitly states it is a read-only heuristic advisory for whether it is safe to stop or destroy a Ceph instance, clearly identifying the verb (check advisory), resource (Ceph mon/mds/osd safety), and distinguishing from sibling tools that perform the actual stop/destroy operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description clearly states that the tool is advisory only and never a gate, explaining that the plan must still render even if Ceph is unreachable, producing a 'cmd-safety unavailable' note. It implies its usage as a pre-check before destructive actions, though it does not explicitly name alternative tools.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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