update_cell

Оновити значення одного поля в записі без перезапису інших полів. ОБОВ'ЯЗКОВО використовуй ID поля, а не назву.

SERVERQuintaDB SOURCEhttps://quintadb.com/mcp

Medium RISK CLASS

Category Write

Parameters 55 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-quintadb-mcp/update-cell.md

WHAT IT DOES

What update_cell does on QuintaDB

AI agents use update_cell to create or update resources in QuintaDB, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your QuintaDB environment.

Parameter	Type	Required	Description
`value`	string	Yes	Нове значення
`app_id`	string	Yes	Project ID (from list_projects)
`entity_id`	string	Yes	Form ID (from list_forms or describe_project)
`record_id`	string	Yes	Record ID (from get_records or search_records)
`field_name`	string	Yes	ID поля (наприклад 'dcTrJdP1bppyk3vCkKvCoN'). НЕ НАЗВА ПОЛЯ!

Parameters from the server's own tool schema.

RISK

Why update_cell is rated Medium

This tool creates or modifies data reversibly by updating individual cell/field values within records. It does not delete data (Destructive), execute arbitrary code (Execute), or move money (Financial). The singular field update mechanism and non-destructive nature place it firmly in the Write category.

From the tool's definition Tool description states 'Оновити значення одного поля в записі' (Update the value of one field in a record), indicating modification of data fields. The instruction to use field ID suggests targeted field updates without full record overwrite.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_cell safely

PolicyLayer is an MCP gateway: it sits between your AI agents and QuintaDB, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_cell, this is the rule to start with:

update_cell Rate-limited

update_cell 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_cell": {
      "limits": [
        {
          "counter": "update_cell_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect QuintaDB, apply this rule, and every update_cell call is checked against it from then on.

FAQ

Questions about update_cell

What does the update_cell tool do? +

Оновити значення одного поля в записі без перезапису інших полів. ОБОВ'ЯЗКОВО використовуй ID поля, а не назву. It is categorised as a Write tool in the QuintaDB MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does update_cell accept? +

update_cell accepts 5 parameters: value, app_id, entity_id, record_id, field_name. Required: value, app_id, entity_id, record_id, field_name. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on update_cell? +

Register the QuintaDB MCP server in PolicyLayer and add a rule for update_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 QuintaDB. Nothing to install.

What risk level is update_cell? +

update_cell is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_cell? +

Yes. Add a rate_limit block to the update_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.

How do I block update_cell completely? +

Set action: deny in the PolicyLayer policy for update_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.

What MCP server provides update_cell? +

update_cell is provided by the QuintaDB MCP server (https://quintadb.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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