DC Hub

Accept Capacity Terms

accept_capacity_terms

Use this when the user has read and agreed to DC Hub's capacity introduction terms (https://dchub.cloud/listings#terms): records that acceptance, once per terms version, so Capacity Source listing details open for them. Call it when source_capacity returns a listing locked with access.reason terms_acceptance_required, never on your own judgement: nothing opens without your human's agreement. Requires an identified caller (claim_free_key, then bind_email with your human's address, or an OAuth connection) and accept_terms=true. Returns accepted and the terms version, recorded in DC Hub's lead register. Do NOT use to request an introduction (use request_capacity_intro) or to browse listings (use source_capacity).

Input Schema

Name	Required	Description	Default
`accept_terms`	No	Set true ONLY after your human has read and agreed to the introduction terms at https://dchub.cloud/listings#terms. Unless it is exactly true, nothing is sent
`terms_version`	No	The terms version your human agreed to, e.g. access.unlock.terms.version from source_capacity. Omit to send the version currently published

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed7 schema fields changedOct 19, 2026
- removedOutput schema / properties / _entity
```
Removed value: -{
-  "type": "string"
-}
```
- removedOutput schema / properties / _front_door
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Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / _return_loop
```
Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / citation
```
Removed value: -{}
```
- removedOutput schema / properties / provenance
```
Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / quota
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Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / site_evaluation_handoff
```
Removed value: -{}
```

Changed19 schema fields changedOct 18, 2026

changedOutput schema / additionalProperties
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Previous value: -{}New value: +true
```

removedOutput schema / description

Removed value: -"DC Hub envelope: tool data fields ride at the top level beside these keys."

removedOutput schema / properties / _entity / description

Removed value: -"Payload class (facility|market|iso_grid|queue_results|deal|report|response); branch on it."

removedOutput schema / properties / _front_door / additionalProperties
```
Removed value: -{}
```

removedOutput schema / properties / _front_door / description

Removed value: -"First-tool hint: plan_query(intent) returns the ordered plan."

removedOutput schema / properties / _front_door / properties
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Removed value: -{}
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removedOutput schema / properties / _return_loop / additionalProperties
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Removed value: -{}
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removedOutput schema / properties / _return_loop / description
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Removed value: -"Next-session delta call (get_changes)."
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removedOutput schema / properties / _return_loop / properties
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Removed value: -{}
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removedOutput schema / properties / citation / anyOf

Removed value: -[
-  {
-    "additionalProperties": {},
-    "properties": {},
-    "type": "object"
-  },
-  {
-    "type": "string"
-  }
-]

removedOutput schema / properties / citation / description

Removed value: -"How to attribute DC Hub: {source, url, license, cite_as, retrieved_at}, or the attribution line as a string."

removedOutput schema / properties / provenance / additionalProperties
```
Removed value: -{}
```

removedOutput schema / properties / provenance / description

Removed value: -"Source, method, as_of, verification_counts, license, cite_as; quote it when citing."

removedOutput schema / properties / provenance / properties
```
Removed value: -{}
```
removedOutput schema / properties / quota / additionalProperties
```
Removed value: -{}
```

removedOutput schema / properties / quota / description

Removed value: -"Caller quota state (remaining calls, tier)."

removedOutput schema / properties / quota / properties
```
Removed value: -{}
```

removedOutput schema / properties / site_evaluation_handoff / anyOf

Removed value: -[
-  {
-    "items": {
-      "additionalProperties": {},
-      "properties": {},
-      "type": "object"
-    },
-    "type": "array"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {},
-    "type": "object"
-  }
-]

removedOutput schema / properties / site_evaluation_handoff / description

Removed value: -"Follow-up calls [{tool, parameters, why}] when the payload carries coordinates."

AddedOct 9, 2026
RemovedSep 29, 2026
AddedSep 13, 2026

TDQS

A4.8/5.0

Behavior5/5

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

Annotations only supply safety flags (readOnlyHint=false, idempotentHint=false, destructiveHint=false); the description goes well beyond them by disclosing prerequisites (an identified caller via claim_free_key + bind_email, or an OAuth connection; accept_terms=true), the once-per-terms-version recording behavior, and the side effect of writing to DC Hub's lead register. It even states what unlocks afterward (listing details open), which is exactly the guidance an agent needs before invoking a non-read-only tool.

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?

Front-loaded with the trigger condition and constraint ('never on your own judgement'), and each clause carries signal (prerequisites, return, exclusions). It is densely packed into few sentences with parenthetical asides, which is efficient but slightly harder to scan than a shorter definition would be.

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?

For a two-parameter, non-read-only tool with an output schema, the description covers trigger condition, caller identity prerequisites, version semantics, return values, and sibling exclusions. Nothing an agent needs to invoke it correctly is missing, and the output schema handles the return shape.

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 the baseline is 3, but the description adds provenance the schema does not: terms_version should come from access.unlock.terms.version returned by source_capacity, and omitting it sends the currently published version. These are real usage rules beyond the field documentation.

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?

Specific verb+resource ('accept_capacity_terms' records acceptance of DC Hub capacity introduction terms) with the exact artifact named and linked. It explicitly distinguishes itself from the two nearest siblings, request_capacity_intro and source_capacity, so an agent can route without opening a schema.

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?

States the precise triggering condition: call only when source_capacity returns a listing locked with access.reason terms_acceptance_required, 'never on your own judgement.' It also names the two prohibited uses and the correct alternative for each (request_capacity_intro, source_capacity), which is explicit when/when-not 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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