gluecron_write_file

Create or update a file on a branch via git plumbing. Wraps createOrUpdateFileOnBranch. Pass content as a UTF-8 string OR content_base64 for binary. Requires 'repo' scope.

SERVERGluecron SOURCEhttps://gluecron.com/mcp

Medium RISK CLASS

Category Write

Parameters 85 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-gluecron-gluecron/gluecron-write-file.md

WHAT IT DOES

What gluecron_write_file does on Gluecron

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

Parameter	Type	Required	Description
`path`	string	Yes
`repo`	string	Yes
`owner`	string	Yes
`branch`	string	Yes
`content`	string	—	UTF-8 file body (optional)
`message`	string	Yes	Commit message
`content_base64`	string	—	Base64 file body (optional)
`expect_blob_sha`	string	—	Optimistic-concurrency check: existing blob sha must match.

Parameters from the server's own tool schema.

RISK

Why gluecron_write_file is rated Medium

This tool modifies repository files in a reversible manner—files created or updated via git can be reverted, amended, or deleted in subsequent commits. While it can alter code and potentially introduce vulnerabilities, the changes are tracked by git and can be undone, distinguishing it from destructive operations.

From the tool's definition Tool description explicitly states 'Create or update a file on a branch via git plumbing', using the verbs 'create' and 'update' which are reversible write operations. The tool accepts content as UTF-8 string or binary via base64 encoding.

Risk signalsAccepts file system path (path) · Accepts raw HTML/template content (content)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gluecron_write_file safely

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

gluecron_write_file Rate-limited

gluecron_write_file 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": {
    "gluecron_write_file": {
      "limits": [
        {
          "counter": "gluecron_write_file_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 Gluecron, apply this rule, and every gluecron_write_file call is checked against it from then on.

FAQ

Questions about gluecron_write_file

What does the gluecron_write_file tool do? +

Create or update a file on a branch via git plumbing. Wraps createOrUpdateFileOnBranch. Pass content as a UTF-8 string OR content_base64 for binary. Requires 'repo' scope. It is categorised as a Write tool in the Gluecron MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does gluecron_write_file accept? +

gluecron_write_file accepts 8 parameters: path, repo, owner, branch, content, message, content_base64, expect_blob_sha. Required: path, repo, owner, branch, message. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on gluecron_write_file? +

Register the Gluecron MCP server in PolicyLayer and add a rule for gluecron_write_file: 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 Gluecron. Nothing to install.

What risk level is gluecron_write_file? +

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

Can I rate-limit gluecron_write_file? +

Yes. Add a rate_limit block to the gluecron_write_file 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 gluecron_write_file completely? +

Set action: deny in the PolicyLayer policy for gluecron_write_file. 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 gluecron_write_file? +

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

KEEP EXPLORING

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write_file on 0sec → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →