Find an EXACT literal token in raw doc files (markdown + lua). Use for specific weapon/ped/animation/prop/interior/zone names (weapon_pistol_volcanic, a_c_bear_01, p_campfire01x), known hashes (0x020D13FF), walkstyles/clipsets (MP_Style_Casual, mech_loco_m@), or any string you'd grep for. NOT for...
Risk signalsHigh parameter count (12 properties)
Part of the Redm server.
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AI agents call grep_docs to retrieve information from Redm 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 grep_docs 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": {
"grep_docs": {}
}
}See the full Redm policy for all 10 tools.
These attack patterns abuse exactly the kind of access grep_docs 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.
Find an EXACT literal token in raw doc files (markdown + lua). Use for specific weapon/ped/animation/prop/interior/zone names (weapon_pistol_volcanic, a_c_bear_01, p_campfire01x), known hashes (0x020D13FF), walkstyles/clipsets (MP_Style_Casual, mech_loco_m@), or any string you'd grep for. NOT for behavior/concept queries (use semantic_search) or script-native hash/name lookup (use lookup_native). REQUIRED for tokens inside the largest rdr3_discoveries data tables (audio_banks, ingameanims_list, cloth_drawable, cloth_hash_names, object_list, megadictanims, entity_extensions, imaps_with_coords, propsets_list, vehicle_bones) — only preview-indexed for embeddings, so semantic_search will NOT find tokens in them. Optional: contextBefore/contextAfter for ±N surrounding lines (saves a follow-up get_document call); filesOnly: true to get paths only (cheap exploration); multiline: true for cross-line patterns ((?s)foo.*bar). Pattern uses Rust regex syntax (rg engine). PREFER one targeted call over giant a|b|c|d|e alternations — split into separate calls; alternations rarely improve recall and bloat the regex automaton. Returns matched lines with path + line number. Long matched lines are windowed ±60 chars around the match (…); to read around a hit, use read_lines({path, start}) for the preview-only mega-tables listed above (get_document holds only their ~80-line head), or get_document({path}) for ordinary docs. If you are retrying after a previous pattern returned no matches, populate prior_attempt so the server can record what didn't work and steer alternative spellings.. It is categorised as a Read tool in the Redm MCP Server, which means it retrieves data without modifying state.
Register the Redm MCP server in PolicyLayer and add a rule for grep_docs: 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 Redm. Nothing to install.
grep_docs 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 grep_docs 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 grep_docs. 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.
grep_docs is provided by the Redm MCP server (https://redm-mcp.fivem.no/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 10 Redm tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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