Use this tool when you want to send candidate meeting times to a group and collect their votes before confirming a booking. Prerequisites: every participant in participantIds must already be registered via createParticipant; the organizerParticipantId must be one of the participantIds. Typical se...
High parameter count (10 properties); Bulk/mass operation — affects multiple targets
Part of the Meetsync MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents use createProposal to create or modify resources in Meetsync. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call createProposal repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Meetsync.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
tools:
createProposal:
rules:
- action: allow
rate_limit:
max: 30
window: 60See the full Meetsync policy for all 19 tools.
Agents calling write-class tools like createProposal have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.
Use this tool when you want to send candidate meeting times to a group and collect their votes before confirming a booking. Prerequisites: every participant in participantIds must already be registered via createParticipant; the organizerParticipantId must be one of the participantIds. Typical sequence: createParticipant for each person → findMutualAvailability to get slots → createProposal with those slots. After creation the proposal is "pending". Each participant must respond via respondToProposal (one call per person). Once all participants accept, the proposal becomes "accepted" and you call createBooking to confirm.. It is categorised as a Write tool in the Meetsync MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Add a rule in your Intercept YAML policy under the tools section for createProposal. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Meetsync MCP server.
createProposal 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 createProposal rule in your Intercept 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 Intercept policy for createProposal. 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.
createProposal is provided by the Meetsync MCP server (nicholasemccormick/meetsync-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.