Run memory consolidation: detects repeated episodic patterns (e.g., 'user asked about X five times') and creates semantic summaries. Reduces memory footprint in long-running sessions while preserving essential knowledge. Side effects: mutates state (additive) — creates new summary facts; original...
Part of the Nocturnusai MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents invoke compress to trigger processes or run actions in Nocturnusai. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
compress can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
tools:
compress:
rules:
- action: allow
rate_limit:
max: 10
window: 60
validate:
required_args: trueSee the full Nocturnusai policy for all 16 tools.
Agents calling execute-class tools like compress have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Execute risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.
compress is one of the high-risk operations in Nocturnusai. For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.
Run memory consolidation: detects repeated episodic patterns (e.g., 'user asked about X five times') and creates semantic summaries. Reduces memory footprint in long-running sessions while preserving essential knowledge. Side effects: mutates state (additive) — creates new summary facts; original facts remain intact. Auth: requires X-Tenant-ID header; FACT_WRITE permission when auth is enabled. Rate-limited per principal. Errors: VALIDATION_ERROR on bad args.. It is categorised as a Execute tool in the Nocturnusai MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Add a rule in your Intercept YAML policy under the tools section for compress. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Nocturnusai MCP server.
compress is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the compress rule in your Intercept 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 Intercept policy for compress. 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.
compress is provided by the Nocturnusai MCP server (nocturnusai-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept