save_programSave a program to the user's account ('save this for later'); the same programId updates it. Needs the user's Rhylthyme account.
| Name | Required | Description | Default |
|---|---|---|---|
| token | No | Access token from the login tool. Omit when the account is connected. | |
| program | Yes | Program JSON; shape under validate_program. |
Changes observed during successful MCP inspections.
Input schema / $schemaPrevious value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"Input schema / properties / program / descriptionPrevious value: -"Rhylthyme program JSON. Read rhylthyme://guide/authoring for the rules."New value: +"Program JSON; shape under validate_program."Input schema / properties / program / properties / actorsRemoved value: -{
- "description": "How many people are available to work steps concurrently.",
- "maximum": 9007199254740991,
- "minimum": -9007199254740991,
- "type": "integer"
-}Input schema / properties / program / properties / descriptionRemoved value: -{
- "type": "string"
-}Input schema / properties / program / properties / environmentRemoved value: -{
- "description": "Optional environmentId whose resourceConstraints apply.",
- "type": "string"
-}Input schema / properties / program / properties / environmentTypeRemoved value: -{
- "description": "kitchen | laboratory | event | gym | bakery | manufacturing | general …",
- "type": "string"
-}Input schema / properties / program / properties / metadataRemoved value: -{
- "additionalProperties": {},
- "properties": {
- "attribution": {
- "type": "string"
- },
- "ingredients": {
- "items": {
- "additionalProperties": {},
- "properties": {
- "measure": {
- "type": "string"
- },
- "name": {
- "type": "string"
- }
- },
- "required": [
- "name"
- ],
- "type": "object"
- },
- "type": "array"
- },
- "serves": {
- "anyOf": [
- {
- "type": "string"
- },
- {
- "type": "number"
- }
- ]
- },
- "sourceUrl": {
- "type": "string"
- },
- "thumbnail": {
- "type": "string"
- }
- },
- "type": "object"
-}Input schema / properties / program / properties / nameRemoved value: -{
- "description": "Human-readable name",
- "type": "string"
-}Input schema / properties / program / properties / programIdRemoved value: -{
- "description": "Kebab-case identifier",
- "type": "string"
-}Input schema / properties / program / properties / resourceConstraintsRemoved value: -{
- "items": {
- "additionalProperties": {},
- "properties": {
- "description": {
- "type": "string"
- },
- "maxConcurrent": {
- "maximum": 9007199254740991,
- "minimum": 1,
- "type": "integer"
- },
- "task": {
- "type": "string"
- }
- },
- "required": [
- "task",
- "maxConcurrent"
- ],
- "type": "object"
- },
- "type": "array"
-}Input schema / properties / program / properties / schemaVersionRemoved value: -{
- "default": "0.1.0",
- "type": "string"
-}Input schema / properties / program / properties / tracksRemoved value: -{
- "items": {
- "additionalProperties": {},
- "properties": {
- "description": {
- "type": "string"
- },
- "name": {
- "type": "string"
- },
- "replicates": {
- "additionalProperties": {},
- "properties": {
- "count": {
- "maximum": 9007199254740991,
- "minimum": 1,
- "type": "integer"
- },
- "delay": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
- },
- "mode": {
- "enum": [
- "parallel",
- "stagger",
- "serial"
- ],
- "type": "string"
- }
- },
- "required": [
- "count"
- ],
- "type": "object"
- },
- "steps": {
- "items": {
- "additionalProperties": {},
- "properties": {
- "canAbort": {
- "type": "boolean"
- },
- "choice": {
- "additionalProperties": {},
- "description": "Branch point: downstream steps with a matching choiceId only run for that option.",
- "properties": {
- "options": {
- "items": {
- "additionalProperties": {},
- "properties": {
- "choiceId": {
- "type": "string"
- },
- "label": {
- "type": "string"
- }
- },
- "required": [
- "choiceId"
- ],
- "type": "object"
- },
- "minItems": 2,
- "type": "array"
- },
- "prompt": {
- "type": "string"
- }
- },
- "required": [
- "options"
- ],
- "type": "object"
- },
- "description": {
- "type": "string"
- },
- "duration": {
- "additionalProperties": {},
- "properties": {
- "defaultSeconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
- },
- "maxSeconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
- },
- "minSeconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
- },
- "seconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
- },
- "triggerName": {
- "type": "string"
- },
- "type": {
- "description": "fixed: exact seconds. variable: min/max with a default, user can end early. indefinite: runs until the user ends it (give defaultSeconds for planning).",
- "enum": [
- "fixed",
- "variable",
- "indefinite"
- ],
- "type": "string"
- }
- },
- "required": [
- "type"
- ],
- "type": "object"
- },
- "name": {
- "type": "string"
- },
- "replicates": {
- "additionalProperties": {},
- "properties": {
- "count": {
- "maximum": 9007199254740991,
- "minimum": 1,
- "type": "integer"
- },
- "delay": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Seconds as a number, or a time string like \"5m\", \"1h30m\", \"90s\"."
- },
- "mode": {
- "enum": [
- "parallel",
- "stagger",
- "serial"
- ],
- "type": "string"
- }
- },
- "required": [
- "count"
- ],
- "type": "object"
- },
- "startTrigger": {
- "additionalProperties": {},
- "properties": {
- "bufferSeconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "afterStepWithBuffer: gap after the referenced step ends."
- },
- "choiceId": {
- "description": "Only run this step if the user picked this option on the referenced step's choice.",
- "type": "string"
- },
- "event": {
- "description": "afterStep anchor: the referenced step's end (default) or start.",
- "enum": [
- "start",
- "end"
- ],
- "type": "string"
- },
- "logic": {
- "description": "Compound trigger: wait for all / any of `triggers`.",
- "enum": [
- "all",
- "any"
- ],
- "type": "string"
- },
- "offsetSeconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Delay after the anchor. Negative values ('start 20m before X ends') require the referenced step to be indefinite."
- },
- "stepId": {
- "description": "Referenced step (afterStep / afterStepWithBuffer / onAbort).",
- "type": "string"
- },
- "triggerName": {
- "type": "string"
- },
- "triggers": {
- "items": {
- "additionalProperties": {},
- "properties": {
- "bufferSeconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "afterStepWithBuffer: gap after the referenced step ends."
- },
- "choiceId": {
- "description": "Only run this step if the user picked this option on the referenced step's choice.",
- "type": "string"
- },
- "event": {
- "description": "afterStep anchor: the referenced step's end (default) or start.",
- "enum": [
- "start",
- "end"
- ],
- "type": "string"
- },
- "offsetSeconds": {
- "anyOf": [
- {
- "type": "number"
- },
- {
- "type": "string"
- }
- ],
- "description": "Delay after the anchor. Negative values ('start 20m before X ends') require the referenced step to be indefinite."
- },
- "stepId": {
- "description": "Referenced step (afterStep / afterStepWithBuffer / onAbort).",
- "type": "string"
- },
- "triggerName": {
- "type": "string"
- },
- "type": {
- "description": "programStart: at t=0. programStartOffset: offsetSeconds after t=0. afterStep: when stepId ends (or starts, with event='start') plus offsetSeconds. afterStepWithBuffer: after stepId ends plus bufferSeconds. manual: user taps to start. onAbort: only if stepId is aborted.",
- "enum": [
- "programStart",
- "programStartOffset",
- "afterStep",
- "afterStepWithBuffer",
- "manual",
- "onAbort"
- ],
- "type": "string"
- }
- },
- "type": "object"
- },
- "type": "array"
- },
- "type": {
- "description": "As for a single trigger; \"compound\" is an optional label for a logic/triggers trigger.",
- "enum": [
- "programStart",
- "programStartOffset",
- "afterStep",
- "afterStepWithBuffer",
- "manual",
- "onAbort",
- "compound"
- ],
- "type": "string"
- }
- },
- "type": "object"
- },
- "stepId": {
- "description": "Unique across the WHOLE program.",
- "type": "string"
- },
- "task": {
- "description": "Resource this step occupies; must match a resourceConstraints[].task.",
- "type": "string"
- },
- "tasks": {
- "items": {
- "type": "string"
- },
- "type": "array"
- }
- },
- "required": [
- "stepId",
- "name",
- "duration",
- "startTrigger"
- ],
- "type": "object"
- },
- "type": "array"
- },
- "trackId": {
- "type": "string"
- }
- },
- "required": [
- "trackId",
- "name",
- "steps"
- ],
- "type": "object"
- },
- "minItems": 1,
- "type": "array"
-}Input schema / properties / program / requiredRemoved value: -[
- "programId",
- "name",
- "tracks"
-]Input schema / properties / token / descriptionPrevious value: -"Only for apps without account connection: the access token from the login tool. Leave empty when the account is connected."New value: +"Access token from the login tool. Omit when the account is connected."Input schema / properties / token / descriptionPrevious value: -"Your Rhylthyme access token"New value: +"Only for apps without account connection: the access token from the login tool. Leave empty when the account is connected."Input schema / requiredPrevious value: -[
- "token",
- "program"
-]New value: +[
+ "program"
+]Input schema / properties / program / properties / tracks / items / properties / steps / items / properties / startTrigger / properties / type / descriptionPrevious value: -"programStart: at t=0. programStartOffset: offsetSeconds after t=0. afterStep: when stepId ends (or starts, with event='start') plus offsetSeconds. afterStepWithBuffer: after stepId ends plus bufferSeconds. manual: user taps to start. onAbort: only if stepId is aborted."New value: +"As for a single trigger; \"compound\" is an optional label for a logic/triggers trigger."Input schema / properties / program / properties / tracks / items / properties / steps / items / properties / startTrigger / properties / type / enumPrevious value: -[
- "programStart",
- "programStartOffset",
- "afterStep",
- "afterStepWithBuffer",
- "manual",
- "onAbort"
-]New value: +[
+ "programStart",
+ "programStartOffset",
+ "afterStep",
+ "afterStepWithBuffer",
+ "manual",
+ "onAbort",
+ "compound"
+]Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already provide readOnlyHint=false, destructiveHint=true, and idempotentHint=true. The description adds that the same programId updates it (idempotent behavior) and requires an account, which is beyond the annotations. It does not detail destructive consequences beyond updating, but it doesn't contradict the annotations and adds meaningful context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences with no redundant words. It front-loads the core purpose, then adds the key update behavior and the account requirement. Every sentence earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has nested objects and no output schema, the description covers the essential context: it saves a program, updates if same programId, and requires an account. It doesn't mention error cases or return values, but those aren't required by the rubric when no output schema exists, and annotations cover safety hints.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, and both parameters are described in the input schema (token and program). The description adds no new parameter-level detail beyond mentioning 'programId', which is not a parameter itself. Since the schema fully covers the parameters, the baseline of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Save') with a clear resource ('a program to the user's account') and explicitly labels the intent ('save this for later'). It also mentions the idempotent behavior (same programId updates), which differentiates it from load_program and list_my_programs among the siblings.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description gives a prerequisite ('Needs the user's Rhylthyme account') but does not explicitly state when to use this tool over alternatives, nor does it mention any when-not conditions. It implies usage for saving, but lacks explicit routing guidance compared to siblings.
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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