Notify trace-mcp that a file was edited. Reindexes the single file and invalidates search caches. Call after Edit/Write to keep index fresh — much lighter than full reindex. Also checks for duplicate symbols — if
AI agents use register_edit to create or update resources in Trace — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Trace environment.
This tool modifies metadata and cached state (search caches, index entries) rather than directly creating or destroying application data. It is reversible—re-running register_edit or performing a full reindex can restore consistency.
From the tool's definition Tool description states: 'Notify trace-mcp that a file was edited. Reindexes the single file and invalidates search caches. Call after Edit/Write to keep index fresh.' The tool modifies internal indexing state and search caches in response to file changes.
Documented attack patterns abuse exactly the kind of access register_edit gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trace, and nothing reaches the server without passing your rules. This is the rule we recommend for register_edit:
{
"version": "1",
"default": "deny",
"tools": {
"register_edit": {
"limits": [
{
"counter": "register_edit_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}register_edit 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.
Free to start. No card required.
Notify trace-mcp that a file was edited. Reindexes the single file and invalidates search caches. Call after Edit/Write to keep index fresh — much lighter than full reindex. Also checks for duplicate symbols — if. It is categorised as a Write tool in the Trace MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Trace MCP server in PolicyLayer and add a rule for register_edit: 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 Trace. Nothing to install.
register_edit 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 register_edit 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 register_edit. 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.
register_edit is provided by the Trace MCP server (nikolai-vysotskyi/trace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 178 Trace tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
178 Trace tools catalogued and risk-classified — across an index of 42,500+ MCP servers.