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How to give Claude Code access to secrets safely

Give Claude Code access to project secrets without pasting raw API keys into chat by using scoped agent credentials and runtime secret resolution.

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Answer target

How can you give Claude Code access to secrets safely?

Updated June 2, 2026

Short answer

The safer pattern is to create a named agent identity for Claude Code, grant it only the project secrets it needs, and let it resolve those secrets through a secure runtime API. The raw provider key should not be pasted into the chat transcript or committed to the repo.

Do not paste raw keys into the conversation

Claude Code is useful because it can reason about files and run commands, but that does not mean raw credentials belong in chat. Chat history, screenshots, copied prompts, and tool logs can all become secondary places where a key exists.

Use a short-lived provisioning prompt instead

A safer onboarding flow gives Claude Code a short-lived, single-use provisioning token. Redeeming that token creates or rotates the agent key outside the chat transcript. The recommended CLI path stores the returned key in a named ScopeHold profile, while the API-only path remains available for runtimes that cannot or should not install the CLI.

Give the agent reusable guidance

ScopeHold Agent Guidance is available from the Runtime API so agents can refresh the safe operating pattern without a separate installer command. The generic endpoint works for any runtime, with Claude, Codex, and Cursor packaging variants where those formats help.

Grant project secrets deliberately

If Claude Code is working on one repository, it should only see that repository's project context and only resolve directly granted secrets. Visibility into a provider should not automatically mean access to every key under that provider.

  • Create one Claude Code agent per durable working context.
  • Assign it to the relevant project.
  • Grant the specific API keys or login credentials it needs.
  • Revoke or rotate agent access when the working context changes.

Practical workflow

  1. 1Create the Claude Code agentName it after the project or operating role so audit history is readable later.
  2. 2Generate a provisioning promptUse a short-lived prompt that can be redeemed once instead of exposing a long-lived key.
  3. 3Register Agent Guidance when supportedIf Claude Code supports reusable skills or instruction files in your runtime, use the ScopeHold Agent Guidance variant as optional guidance. Do not block secret resolution on this step.
  4. 4Resolve only task-required secretsThe agent should inspect inventory, resolve only the needed values, apply them, verify the result, and clear temporary shell variables.

Pasted key vs Provisioned agent

TopicPasted keyProvisioned agent
Chat exposureThe credential appears directly in chat history.The chat contains only a short-lived provisioning token.
RotationManual and easy to forget.Provisioning can rotate the agent key when redeemed.
AuditHard to connect usage to a named runtime.Resolution is linked to the Claude Code agent identity.

Where ScopeHold fits

ScopeHold's agent provisioning flow is designed for this exact problem: keep the setup prompt convenient, but keep the raw agent key and provider secrets out of chat.