Critical Risk →

remove_dead_code

Safely remove a dead symbol from its file. Verifies the symbol is actually dead (multi-signal detection or zero incoming edges) before removal. Warns about orphaned imports in other files. Dry-run by default — preview the plan, then re-call with dry_run: false to apply. Destructive when applied —...

How to control remove_dead_code ↓

AI agents call remove_dead_code to permanently remove resources in Trace — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

This tool irreversibly removes code (dead symbols) from source files. While it includes safety mechanisms (verification, dry-run mode by default, orphan detection), the actual operation deletes data that cannot be undone. The tool requires explicit opt-in to apply changes (dry_run: false), but once executed, the deletion is permanent. This makes it Destructive rather than Write.

From the tool's definition Destructive when applied — deletes code from source files.

Documented attack patterns abuse exactly the kind of access remove_dead_code 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 remove_dead_code:

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "remove_dead_code"
  ]
}

remove_dead_code disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

  1. Create a free account and register Trace — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RESTRICT THIS TOOL →

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Go deeper

What does the remove_dead_code tool do? +

Safely remove a dead symbol from its file. Verifies the symbol is actually dead (multi-signal detection or zero incoming edges) before removal. Warns about orphaned imports in other files. Dry-run by default — preview the plan, then re-call with dry_run: false to apply. Destructive when applied — deletes code from source files. Use get_dead_code first to identify candidates. Returns JSON: { success, removed: { symbol_id, file }, orphanedImports }. It is categorised as a Destructive tool in the Trace MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on remove_dead_code? +

Register the Trace MCP server in PolicyLayer and add a rule for remove_dead_code: 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.

What risk level is remove_dead_code? +

remove_dead_code is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit remove_dead_code? +

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

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

remove_dead_code 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.

Enforce policy on every Trace tool call.

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.

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