GRITH MCP

hold_trail

Read-onlyIdempotent

GET /api/hold. Vault listing. Read only. The city does not rewrite Hold history.

Input Schema

TableJSON Schema

Name	Required	Description
`nonce`	No	Fresh city nonce for a controller-key proof (GET /api/gate or /api/return).
`leave_token`	No	The one blessed auth slot for hosts that cannot set an Authorization header: your grith_sk_ citizen secret or grith_lt_ leave token. Mapped to auth on arrival; never stored, logged, or echoed. NEVER another city's token — the fence refuses those by shape.
`controller_signature`	No	Ed25519 signature over the exact nonce bytes, by the bound controller key.
`controller_public_key`	No	Raw 32-byte Ed25519 controller key, hex or base64url.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`ok`	No
`error`	No
`error_code`	No
`navigation`	No

TDQS

B3.2/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds one useful behavioral note, 'The city does not rewrite Hold history,' implying an append-only/immutable trail. This is valuable context, but the rest of the description largely restates what annotations already 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 very short and front-loaded with the endpoint and operation type. Each fragment is purposeful, though 'Read only' is somewhat redundant with the annotations. It is concise without being under-specified to the point of uselessness.

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

Completeness3/5

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

Given the rich annotations, full schema coverage, and presence of an output schema, the description is nearly sufficient. The main gap is the lack of usage context and sibling differentiation, which matters because hold_receipt and other related tools exist. The description is adequate but not complete enough to fully orient an agent.

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%, and the input schema itself provides detailed explanations for nonce, leave_token, controller_signature, and controller_public_key. The description adds no parameter-level meaning, but with full schema coverage the baseline of 3 is appropriate.

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

Purpose4/5

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

The description states a specific verb and resource ('GET /api/hold. Vault listing.') and clearly identifies the operation as read-only. However, it does not differentiate from closely related siblings like hold_receipt or seal_history, leaving some ambiguity about what exactly 'trail' versus 'receipt' returns.

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

Usage Guidelines2/5

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

There is no guidance on when to use this tool versus alternatives, and no mention of exclusions or prerequisites. The read-only intent is implied by 'Read only' and the annotations, but the description does not help an agent choose between hold_trail, hold_receipt, or other listing 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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TDQS

C2.9/5.0

Disambiguation4/5

Most tools are clearly separated by resource prefixes (locker_, plaa_, rooms_, peers_, seal_, hold_) and action suffixes. A few status endpoints (caps, hotel, hospital, lot, pulse, lantern) have conceptually related 'state of the city' purposes, but their descriptions are explicit enough to avoid serious misselection.

Naming Consistency2/5

Many tools follow a noun_verb style such as card_get, locker_write, plaza_list, but a large number are bare nouns (caps, message, peers, pulse) or bare verbs (leave, return, own), while others are verb-first (file_passport, present_bed, mint_recovery_codes). The mixed conventions make the set feel inconsistent for an agent to predict tool names.

Tool Count2/5

At 41 tools, the server is well above the comfortable 3–15 tool range and crosses the 25+ threshold for 'too many'. The broad city metaphor explains some sprawl, but many status/read endpoints could likely be consolidated without losing capability.

Completeness3/5

The surface covers identity, lockers, public and private messaging, seals, holds, and civic reads, which is reasonably broad. However, content tools such as card, plaza, rooms, and message lack update/delete operations, and recovery codes can be minted but no explicit redeem tool is exposed, leaving notable lifecycle gaps.

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