Write a structured session log to .agents/logs/YYYY-MM-DD/.
AI agents use write_session_log to create or update resources in Codevira MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Codevira MCP environment.
This tool creates or appends to log files, which is a reversible data modification operation. It does not delete data (Destructive), execute arbitrary code (Execute), move money (Financial), or merely read (Read). The severity is medium because logs are typically non-critical metadata, but writing to system directories could affect auditability and agent behavior tracking if misused to inject false records.
From the tool's definition Tool name 'write_session_log' and description 'Write a structured session log to .agents/logs/YYYY-MM-DD/' indicate the tool creates or modifies log files in a persistent directory.
Documented attack patterns abuse exactly the kind of access write_session_log gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Codevira MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for write_session_log:
{
"version": "1",
"default": "deny",
"tools": {
"write_session_log": {
"limits": [
{
"counter": "write_session_log_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}write_session_log 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.
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Write a structured session log to .agents/logs/YYYY-MM-DD/. It is categorised as a Write tool in the Codevira MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Codevira MCP server in PolicyLayer and add a rule for write_session_log: 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 Codevira MCP. Nothing to install.
write_session_log is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the write_session_log 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 write_session_log. 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.
write_session_log is provided by the Codevira MCP server (sachinshelke/codevira). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Codevira MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
48 Codevira MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.