Your AI agent doesn't need to see your secrets to use them
Claude Code, Cursor, and other coding agents need your env vars to run and test code. SnapEnv makes sure the actual values never pass through a file they wrote, or their own chat transcript.
One .env file is all it takes
Let an agent run and test your app, and it usually needs your .env file — which means every API key and DB URL in it has now passed through a file the agent wrote, or the chat transcript itself.
snapenv run instead of a .env file
Variables are injected straight into the process — or as scrubbed {{VAR}} placeholders in a command's own arguments. Nothing is written to disk. Anything that leaks into stdout or stderr gets scrubbed in real time, before it's ever displayed.
snapenv run --env prod --only DATABASE_URL -- node server.js ✓ server listening on :3000
Install the skill, the agent does the rest
Any Claude Code–compatible agent picks up the CLI, Kubernetes operator, Helm integration, and API on its own.
curl -fsSL https://get.snapenv.io/skill.sh | sh ✓ Installed SnapEnv skill → .claude/skills/snapenv/
- Prefer
snapenv runoversnapenv pullwhenever the task is "run or test something," not "I need a file on disk." - Always specify an explicit scope (
--onlyor--all) — there’s no default, so an agent can’t accidentally gain access to every secret in an environment. - Never echo a secret back to confirm it worked — pulling or injecting it is enough.
- The full CLI, the Kubernetes operator, Helm chart integration, and the API — so an agent can go from "add this env var" to "wire it into the cluster" without you pasting docs into the chat.
How do I give Claude Code access to secrets safely?
Install the SnapEnv skill (curl -fsSL https://get.snapenv.io/skill.sh | sh) and use snapenv run instead of writing a .env file. Values are injected directly into the process and never touch disk or the chat transcript.
How do I prevent secrets from appearing in an AI agent’s output?
snapenv run scrubs any exposed value from a command’s stdout and stderr in real time, as it streams — before it’s ever displayed, logged, or read back by the agent.
Does this work with agents other than Claude Code?
Yes. The skill follows the standard .claude/skills/ format, so any agent that reads a project’s skills directory picks it up. The underlying snapenv run command works with any tool that can execute a shell command.
Can I install the skill for every project instead of one at a time?
Yes — set SNAPENV_SKILL_DIR=~/.claude/skills/snapenv before running the install command to install it once, globally.
Try SnapEnv free
3 projects, 3 members, full CLI & Kubernetes operator. No credit card.