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pve_ceph_flag_set

Sets or clears a single Ceph cluster flag on a Proxmox node. Returns a dry-run plan by default; use confirm=True to execute the change synchronously.

Instructions

MUTATION: set or clear a single Ceph cluster flag. Runs SYNCHRONOUSLY (unlike the bulk pve_ceph_flags_set, which forks a worker task) — PVE returns null.

RISK_MEDIUM: flag semantics vary — 'pause' halts ALL client I/O cluster-wide; other flags are routine maintenance toggles. CAPTURE-or-declare: reads the flag's current value before planning (also readable directly via pve_ceph_flag_get); if unreadable -> complete=False. Dry-run by default (returns a PLAN); confirm=True executes (PUT /cluster/ceph/flags/{flag}) and returns {"status": "ok", "result": None}. No rollback primitive on this plane — revert by re-applying the captured prior value with this same tool.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
flagYesFlag name: one of nobackfill, nodeep-scrub, nodown, noin, noout, norebalance, norecover, noscrub, notieragent, noup, pause.
valueYesTrue sets the flag; False clears (unsets) it.
confirmNoFalse (default) returns a dry-run PLAN only; True executes the change.
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?

No annotations provided, so description carries full burden. It discloses mutation, synchronous execution, PVE returns null, risk level (RISK_MEDIUM), the 'pause' flag halts all I/O, dry-run vs execute behavior, confirm flag semantics, lack of rollback primitive, and revert strategy. Comprehensive coverage of behavioral traits beyond what annotations would provide.

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

Conciseness4/5

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

The description is concise but packed with information. It front-loads key details (MUTATION, synchronous, risk). Some redundancy (e.g., explains dry-run twice) but overall well-structured for clarity. Could be slightly tighter, but effective.

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

Completeness4/5

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

Given the output schema exists, the description need not detail return values, but it does mention PVE returns null and the dry-run/confirm response JSON. It covers prerequisites (read flag before), risk, and revert method. Missing explicit auth/permission requirements, but risk section implies caution. Overall sufficient for a complex mutation tool.

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

Parameters4/5

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

Schema description coverage is 100%, so baseline is 3. The description adds value by explaining flag semantics (e.g., 'pause' halts all client I/O cluster-wide) and the confirm parameter's effect. However, it does not add new parameter-specific details beyond what the schema already provides. Overall, it enhances understanding but does not significantly expand parameter semantics.

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 clearly states the tool 'set or clear a single Ceph cluster flag'. It distinguishes from the sibling tool pve_ceph_flags_set (bulk, async) and mentions pve_ceph_flag_get for reading. The verb+resource is specific and unambiguous.

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

Usage Guidelines5/5

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

Explicit guidelines: 'Runs SYNCHRONOUSLY (unlike the bulk pve_ceph_flags_set)', 'CAPTURE-or-declare: reads the flag's current value before planning', 'Dry-run by default (returns a PLAN); confirm=True executes'. It also explains how to revert: 'revert by re-applying the captured prior value'. This provides clear when-to-use and when-not-to-use context.

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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