Compare two newline-separated text blocks and return added, removed, and unchanged line sets without calling an upstream model. GET variant for agents that prefer query parameters. Pay up to $0.0001 per request with x402 USDC on Base or choose the fixed-price Solana USDC option when advertised. E...
AI agents call gpt55_diff_lines_get to retrieve information from GPT 5 5 x402 Low Cost Agent Tools without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
after | string | Yes | |
before | string | Yes |
Parameters from the server's own tool schema.
The tool reads and analyzes input text to produce a comparison result. While it involves payment via x402 tokens, the payment is incidental metering rather than a financial operation that moves money or commits obligations—it's a usage fee. The core function is text analysis (Read category). The GET variant and no data modification confirm Read classification.
From the tool's definition Tool performs a diff operation comparing two text blocks and returns 'added, removed, and unchanged line sets' with 'no calling an upstream model.' This is a retrieval/analysis operation with no side effects on stored data.
Attacks that exploit this kind of access
Compare two newline-separated text blocks and return added, removed, and unchanged line sets without calling an upstream model. GET variant for agents that prefer query parameters. Pay up to $0.0001 per request with x402 USDC on Base or choose the fixed-price Solana USDC option when advertised. Exact fixed-price payment and Base upto token-metered payment are both accepted when clients support them; upto settlements use actual response usage, a 0.0001 minimum, and the selected tier price as the cap. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json. It is categorised as a Read tool in the GPT 5 5 x402 Low Cost Agent Tools MCP Server, which means it retrieves data without modifying state.
gpt55_diff_lines_get accepts 2 parameters: after, before. Required: after, before. The full parameter table on this page comes from the server's own tool schema.
Register the GPT 5 5 x402 Low Cost Agent Tools MCP server in PolicyLayer and add a rule for gpt55_diff_lines_get: 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 GPT 5 5 x402 Low Cost Agent Tools. Nothing to install.
gpt55_diff_lines_get 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 gpt55_diff_lines_get 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 gpt55_diff_lines_get. 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.
gpt55_diff_lines_get is provided by the GPT 5 5 x402 Low Cost Agent Tools MCP server (https://gpt55.558686.xyz/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
gpt55_diff_lines_get is one line of GPT 5 5 x402 Low Cost Agent Tools's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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