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Synpareia Trust Toolkit

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recording_start

Start a tamper-evident recording of an interaction by creating a hash-linked chain rooted at your identity, returning a recording ID for subsequent appends.

Instructions

Begin a tamper-evident recording of an interaction.

Creates a hash-linked chain rooted at your identity. Subsequent recording_append calls each append a signed, hash-linked block to this chain, so any later modification to the sequence is detectable.

Returns a recording_id that subsequent recording_* calls use to target this chain. The recording remains active until you call recording_end — at which point the chain is persisted and exportable as a cryptographic proof.

Pass counterparty_did when you're recording a dialogue with another agent (optional but recommended — it's embedded in the chain).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
descriptionYes
counterparty_didNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior5/5

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

No annotations provided, but description fully explains the hash-linked chain, tamper-evidence, creation of recording_id, active until recording_end, and exportable as cryptographic proof. No contradictions.

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?

Three concise paragraphs with front-loaded purpose. Every sentence adds value; no redundancy. Well-structured.

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?

Given the tool's complexity, presence of siblings, and no annotations, the description is complete: explains lifecycle, data structure, and usage. Output schema exists, so return value explanation is adequate.

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 0%, but description adds meaning for both parameters: description is the interaction being recorded, counterparty_did is optional but recommended for dialogues and embedded in the chain. More detail on format would improve.

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 begins a tamper-evident recording, distinguishing it from siblings like recording_append, recording_end, recording_list, and recording_proof. The verb 'begin' and resource 'recording' are specific.

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?

Provides clear context: when to start a recording, mentions subsequent calls (recording_append) and termination (recording_end), and optional counterparty_did for dialogues. Lacks explicit when-not-to-use or alternatives, but sufficient.

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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