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oc_context_export

Read-onlyIdempotent

Export cookies, localStorage, and HTTP auth from a tab as a tamper-detectable plaintext envelope to transfer signed-in state between browser instances.

Instructions

Export the active tab's auth-relevant state (cookies + local/sessionStorage + optional UA/viewport/HTTP-auth) as a portable plaintext envelope. The envelope is byte-deterministic modulo capturedAt and carries a SHA-256 integrity hash for tamper detection on import. SECURITY: the envelope is plaintext by design — the host MUST treat it as a secret. Pair with oc_context_import on a fresh openchrome instance to carry signed-in state across hosts.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tabIdYesREQUIRED Tab ID to export from.
originNoExplicit origin to record in the envelope. Default: active tab origin.
includeStorageNoCapture localStorage + sessionStorage. Default: true.
includeHttpAuthNoCapture HTTP Basic auth credentials supplied via `http_auth set`. Default: false (rarely safe to round-trip).
captureUANoCapture navigator.userAgent. Default: false.
Behavior4/5

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

Beyond annotations (readOnlyHint, idempotentHint), the description adds that the envelope is byte-deterministic modulo capturedAt, carries a SHA-256 integrity hash, and is plaintext by design. 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?

The description is concise, front-loading the purpose, and includes essential security and pairing information without waste. Every sentence adds value.

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 no output schema, the description explains the envelope's properties but does not detail its exact structure (e.g., JSON fields). Adequate for use, but the envelope format could be more explicit.

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 baseline is 3. The description adds default values and security context for parameters like includeHttpAuth, providing value beyond schema.

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 exports auth-relevant state (cookies, storage) as a portable plaintext envelope, distinguishing it from its pair sibling oc_context_import. It uses specific verbs and resource details.

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 explicitly pairs with oc_context_import for carrying signed-in state across hosts, providing clear usage context. It does not explicitly state when not to use, but the security note implies caution.

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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