text_diff

Line-level diff of two texts (LCS): counts of added/removed lines plus a marked-up line list. Runs on smart-tools.xyz.

SERVERSmartTools SOURCEhttps://smart-tools.xyz/mcp

Low RISK CLASS

Category Read

Parameters 52 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-9thshini-smart-tools/text-diff.md

WHAT IT DOES

What text_diff does on SmartTools

AI agents call text_diff to retrieve information from SmartTools 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
`a`	string	Yes	First (original) text
`b`	string	Yes	Second (changed) text
`trim`	boolean	—	Trim each line before comparing (default true)
`locale`	string	—	Language for the source_url link (default en)
`ignore_case`	boolean	—	Compare case-insensitively (default false)

Parameters from the server's own tool schema.

RISK

Why text_diff is rated Low

Even though text_diff only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs text_diff safely

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

text_diff Allowed

text_diff is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "text_diff": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about text_diff

What does the text_diff tool do? +

Line-level diff of two texts (LCS): counts of added/removed lines plus a marked-up line list. Runs on smart-tools.xyz. It is categorised as a Read tool in the SmartTools MCP Server, which means it retrieves data without modifying state.

What parameters does text_diff accept? +

text_diff accepts 5 parameters: a, b, trim, locale, ignore_case. Required: a, b. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on text_diff? +

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

What risk level is text_diff? +

text_diff is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit text_diff? +

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

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

text_diff is provided by the SmartTools MCP server (https://smart-tools.xyz/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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