Latest stable versions & end-of-life (EOL) dates for software — languages, runtimes, frameworks, databases, and OSes (Python, Node.js, PostgreSQL, React, Kubernetes, Ubuntu, ...). Use this instead of guessing: "what's the latest stable version of X?" and "is version Y still supported or end-of-li...
Risk signalsAccepts freeform code/query input (query)
Part of the Dynamic Feed server.
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AI agents call software_version to retrieve information from Dynamic Feed without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though software_version only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"software_version": {}
}
}See the full Dynamic Feed policy for all 50 tools.
These attack patterns abuse exactly the kind of access software_version gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Latest stable versions & end-of-life (EOL) dates for software — languages, runtimes, frameworks, databases, and OSes (Python, Node.js, PostgreSQL, React, Kubernetes, Ubuntu, ...). Use this instead of guessing: "what's the latest stable version of X?" and "is version Y still supported or end-of-life?". Each result has latest_version, eol_date, and a status (supported / nearing-eol / end-of-life), plus a provenance envelope. Source: endoflife.date. Args: product: exact product slug (e.g. python, nodejs, postgresql, react, kubernetes). query: match a product name if you don't know the exact slug. category: language | runtime | framework | database | os | tool. only_supported: exclude end-of-life release lines. only_lts: only long-term-support lines. limit: max results.. It is categorised as a Read tool in the Dynamic Feed MCP Server, which means it retrieves data without modifying state.
Register the Dynamic Feed MCP server in PolicyLayer and add a rule for software_version: 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 Dynamic Feed. Nothing to install.
software_version 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 software_version 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 software_version. 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.
software_version is provided by the Dynamic Feed MCP server (https://dynamicfeed.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 50 Dynamic Feed tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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