tilemap_get_cell
Read one cell of a TileMapLayer. An empty cell reads back as source_id -1, atlas_coords [-1, -1], alternative 0 (empty = true).
This record as markdown: /tools/breakpoint-mcp/tilemap-get-cell.md
What tilemap_get_cell does on Breakpoint
AI agents call tilemap_get_cell to retrieve information from Breakpoint 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 |
|---|---|---|---|
path | string | Yes | TileMapLayer node path relative to the scene root |
coords | array | Yes | Cell coordinates [x, y] (in cells) |
Parameters from the server's own tool schema.
Why tilemap_get_cell is rated Low
This tool retrieves data from a tilemap without modifying or deleting it. The description confirms read-only behavior: it queries cell state and returns values. No side effects, code execution, or data mutation occurs. Typical blast radius from misuse is minimal—an agent could over-query but cannot damage data.
From the tool's definition Tool name contains 'get' and description explicitly states 'Read one cell of a TileMapLayer' with retrieval semantics (reads back values, no modification indicated).
Risk signalsAccepts file system path (path)
Attacks that exploit this kind of access
The rule that runs tilemap_get_cell safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Breakpoint, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tilemap_get_cell, this is the rule to start with:
tilemap_get_cell 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 Breakpoint, apply this rule, and every tilemap_get_cell call is checked against it from then on.
Questions about tilemap_get_cell
Read one cell of a TileMapLayer. An empty cell reads back as source_id -1, atlas_coords [-1, -1], alternative 0 (empty = true). It is categorised as a Read tool in the Breakpoint MCP Server, which means it retrieves data without modifying state.
tilemap_get_cell accepts 2 parameters: path, coords. Required: path, coords. The full parameter table on this page comes from the server's own tool schema.
Register the Breakpoint MCP server in PolicyLayer and add a rule for tilemap_get_cell: 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 Breakpoint. Nothing to install.
tilemap_get_cell 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 tilemap_get_cell 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 tilemap_get_cell. 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.
tilemap_get_cell is provided by the Breakpoint MCP server (breakpoint-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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