happ_assistant_version_diff
Git-стиль дифф между двумя состояниями ассистента. Каждая сторона — id версии, 'live' (текущее несохранённое состояние) или 'empty' (пустота). Типовые вызовы: a=<id последней версии>, b='live' → что ещё не закоммичено; a=<vN>, b=<vM> → что изменилось между версиями. Секции: prompt, settings, llm,...
This record as markdown: /tools/happ-ai-platform-mcp/happ-assistant-version-diff.md
What happ_assistant_version_diff does on Platform
AI agents call happ_assistant_version_diff to retrieve information from Platform without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
a | string | Yes | Версия-база: uuid версии, 'live' или 'empty' |
b | string | Yes | Версия-сравнение: uuid версии, 'live' или 'empty' |
assistantId | string | Yes | ID ассистента |
Parameters from the server's own tool schema.
Why happ_assistant_version_diff is rated Low
Even though happ_assistant_version_diff only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs happ_assistant_version_diff safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Platform, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For happ_assistant_version_diff, this is the rule to start with:
happ_assistant_version_diff is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Platform, apply this rule, and every happ_assistant_version_diff call is checked against it from then on.
Questions about happ_assistant_version_diff
Git-стиль дифф между двумя состояниями ассистента. Каждая сторона — id версии, 'live' (текущее несохранённое состояние) или 'empty' (пустота). Типовые вызовы: a=<id последней версии>, b='live' → что ещё не закоммичено; a=<vN>, b=<vM> → что изменилось между версиями. Секции: prompt, settings, llm, tools, knowledge, auditor. (GET /assistants-new/:id/versions/diff). It is categorised as a Read tool in the Platform MCP Server, which means it retrieves data without modifying state.
happ_assistant_version_diff accepts 3 parameters: a, b, assistantId. Required: a, b, assistantId. The full parameter table on this page comes from the server's own tool schema.
Register the Platform MCP server in PolicyLayer and add a rule for happ_assistant_version_diff: 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 Platform. Nothing to install.
happ_assistant_version_diff is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the happ_assistant_version_diff 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 happ_assistant_version_diff. 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.
happ_assistant_version_diff is provided by the Platform MCP server (@happ-ai/platform-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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