Place or update a bid on an offer. Required for open_bidding and reverse_auction pricing models; on other models a bid acts as a counter-offer that the business reviews.
Part of the Computeback server.
Free to start. No card required.
AI agents use place_bid to create or modify resources in Computeback. 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 place_bid repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Computeback.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"place_bid": {
"limits": [
{
"counter": "place_bid_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Computeback policy for all 28 tools.
These attack patterns abuse exactly the kind of access place_bid gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Place or update a bid on an offer. Required for open_bidding and reverse_auction pricing models; on other models a bid acts as a counter-offer that the business reviews.. It is categorised as a Write tool in the Computeback MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Computeback MCP server in PolicyLayer and add a rule for place_bid: 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 Computeback. Nothing to install.
place_bid 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 place_bid 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 place_bid. 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.
place_bid is provided by the Computeback MCP server (@autonomad1/computeback-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 28 Computeback tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.