AI governance for Cursor
Cursor at work: redaction and visibility
PromptWall redacts sensitive content in every Cursor prompt and inline completion - Cmd-K, Cmd-L chat, agent mode, and the full file context.
Real usage
What people paste into Cursor
The patterns we see most often once a team adopts Cursor for real work.
Whole files become model context
Cursor sends the entire open file, and often surrounding files, as context for Cmd-K and chat - including credentials in fixtures and customer data in seeds.
Agent mode reads across the repo
Cursor's agent walks files autonomously to complete a task, reading .env files, internal docs and credentials without them being explicitly attached.
Composer carries context across turns
Each Composer turn ships the conversation history back, so a credential pasted early in a session is re-sent in every later turn.
What your employee typed
Refactor this script to read vendor_invoices.csv: const upi = "rajesh.traders@okhdfcbank"; const gstin = "27AABCR1234F1Z5";
What Cursor received
Refactor this script to read vendor_invoices.csv: const upi = "[UPI_ID_1]"; const gstin = "[GSTIN_1]";
Coverage
How NexusNest covers Cursor
PromptWall
- Credentials and connection strings inside file context
- Customer identifiers in seed data and fixtures
- Internal admin emails and internal-only URLs
NetLens
NetLens shows how the team uses Cursor - Cmd-K, chat and agent mode - and how often PromptWall redacted something, on redacted text only.
Learn moreFAQ
Cursor, common questions
Does redaction work with Cursor's agent mode?
Yes. Every model call from the agent is covered the same way - PromptWall redacts both the user prompt and the assembled file context.
Does this work if Cursor is routing to my own API key?
Yes - coverage is based on the destination the request is going to, not who holds the API key. Whether Cursor uses its own credits or a bring-your-own-key, the prompt is redacted the same way.
Will my completions get worse?
For prompts that didn't contain sensitive data, nothing changes. For prompts that did, the model sees placeholders in place of the sensitive spans and the completion usually comes back correctly shaped.
Does Cursor's own privacy mode already do this?
Cursor's privacy mode covers training and retention with its model providers - it doesn't redact the content of a prompt. PromptWall removes sensitive content before any provider sees it.
Does this slow down Cmd-K?
Typically adds 150-250ms, mostly the redaction round-trip - well under the threshold where it feels disruptive.
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