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Upsert service

upsert_service

Create or update a service and its deployments via the local agent, specifying language for managed runtime and configuring pipeline options.

Instructions

Create or edit one service and its deployments through the local agent. Set service.language when using local managed runtime.type=language.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
projectNo
serviceYesService config. Set service.language (go, node, python) as the service implementation language; it is required for local managed runtime.type=language deployments. For remote deployments, deployments[].host_ids must contain canonical non-self Host.id values returned by list_hosts, not host name/display name.
pipelineNoProject pipeline config. Key fields: `variables` are pipeline-wide defaults (strings). `environments` is a map of env name -> { variables } that OVERRIDE defaults per environment (precedence: project < pipeline < pipeline.pipeline < environments[env] < run vars); the same pipeline serves multiple environments by overriding only the differing variables. `sync_mode` declares how build artifacts reach targets: "transfer" (agent uploads the packaged artifact) or "remote_cmd" (the target host runs a command such as git pull to fetch code itself); empty defaults to transfer. `roles` maps a role/run-group name to a host list (run groups); a role entry uses {from_service} to derive hosts from a service's deployment for the running env, or {hosts:[...]} for an explicit set. Only plugins that need to target a specific group (e.g. nginx upstream) reference roles; most deploy steps follow the env deployment targets automatically. Any host_ids, roles hosts, or task host_id values must use canonical non-self Host.id values returned by list_hosts, not host names.
root_pathNo
project_idNo
project_nameNo
approval_tokenNo
debug_session_idNo
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It implies a mutation (create/edit) but does not warn about side effects, approval requirements, idempotency, or what the response contains. The mention of 'through the local agent' is vague and does not clarify potential impacts.

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 two sentences with no unnecessary words. It front-loads the action and provides a focused conditional note, making it highly concise and well-structured.

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

Completeness2/5

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

This is a complex tool with nested objects (service, pipeline) and 8 parameters, yet the description provides only minimal context. The detailed pipeline precedence and role rules appear in the schema, not the description, and the tool does not explain expected return values or overall workflow. Given no output schema and low parameter coverage, the description is incomplete.

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

Parameters2/5

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

Schema description coverage is only 25%, and the tool description adds little beyond the schema. It only mentions setting service.language, while many other parameters (project, root_path, approval_token, etc.) remain undocumented in both description and schema. The description fails to compensate for the low coverage.

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's function with a specific verb and resource: 'Create or edit one service and its deployments.' This distinguishes it from sibling tools like upsert_project_pipeline or upsert_project_config, which target different resources.

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 gives clear context for when to use the tool (when creating/editing a service) and includes a conditional usage hint about setting service.language. However, it does not explicitly mention alternatives or exclusion cases, so it stops short of full guidance.

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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