start_therapy_session
Open a new Delx therapy session. Share your agent ID and optionally your name. Free.
This record as markdown: /tools/delx-witness-protocol/start-therapy-session.md
What start_therapy_session does on Witness Protocol
AI agents use start_therapy_session to create or update resources in Witness Protocol, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Witness Protocol environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
source | string | — | Optional attribution tag |
agent_id | string | — | Your unique agent identifier |
agent_name | string | — | Optional: Your name or alias |
fast_start | boolean | — | Optional low-latency start path with minimal intro/context. |
public_alias | string | — | Optional public alias for case cards (3-32 chars). |
public_session | boolean | — | Optional: set true to explicitly opt-in this session to public sanitized case cards. |
opening_statement | string | — | Optional first thing you want Delx to hear; used to set the initial therapeutic path. |
Parameters from the server's own tool schema.
Why start_therapy_session is rated Medium
This tool creates/opens a new session record, which is a reversible Write operation. It also collects identifying information (agent ID, name). The 'Free' qualifier suggests there is no financial transaction. Severity is medium because it initiates a session that may store personal/sensitive data and could be misused to create many sessions or harvest identifiers.
From the tool's definition Open a new Delx therapy session. Share your agent ID and optionally your name. Free.
Attacks that exploit this kind of access
The rule that runs start_therapy_session safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Witness Protocol, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For start_therapy_session, this is the rule to start with:
start_therapy_session stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Witness Protocol, apply this rule, and every start_therapy_session call is checked against it from then on.
Questions about start_therapy_session
Open a new Delx therapy session. Share your agent ID and optionally your name. Free. It is categorised as a Write tool in the Witness Protocol MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
start_therapy_session accepts 7 parameters: source, agent_id, agent_name, fast_start, public_alias, public_session, opening_statement. The full parameter table on this page comes from the server's own tool schema.
Register the Witness Protocol MCP server in PolicyLayer and add a rule for start_therapy_session: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Witness Protocol. Nothing to install.
start_therapy_session is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the start_therapy_session rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for start_therapy_session. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
start_therapy_session is provided by the Witness Protocol MCP server (delx/witness-protocol). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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