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name: lucidchart-install-auth description: 'Choose and configure the correct Lucid authentication model: API key, OAuth user token, or OAuth account token. Use when bootstrapping or repairing Lucid REST access. Trigger with "configure Lucid auth".' argument-hint: "[project-path] [auth-mode]" allowed-tools: Read, Glob, Grep, WebFetch, Write, Edit version: 1.8.0 author: Jeremy Longshore jeremy@intentsolutions.io license: MIT tags: [saas, lucidchart, authentication, oauth, api-key] model: inherit effort: medium compatibility: Designed for Claude Code; credential creation, OAuth registration, consent, and account-token grants require administrator or resource-owner approval

Lucid Installation and Authentication

Overview

Select the least-privilege credential class for the operation, configure a secretless local contract, and verify identity and scope without exposing credentials.

Prerequisites

• The exact Lucid operation, resource owner, environment, and required scopes
• A registered OAuth application when user or account OAuth is selected
• An approved secret store and rotation owner

Tool Discipline

Use Read, Glob, and Grep to inspect configuration templates, WebFetch for current auth and scope contracts, and Write or Edit only for secretless examples or redacted receipts.

Current Contract

Lucid documents API keys, OAuth user tokens, and OAuth account tokens. OAuth applications use Authorization Code Flow. REST credentials are normally sent as Authorization: Bearer ...; an operation may also require a resource-specific Lucid-Api-Version header.

Authentication

• Use an API key only where the current operation supports it and personal ownership is acceptable.
• Use OAuth user tokens for delegated user access and consented scopes.
• Use OAuth account tokens only for documented account-level use with administrator authorization.
• Never substitute a fabricated Lucid-Api-Key header or log authorization values.

Instructions

1. Re-fetch authentication methods, the exact operation, access scopes, and headers.
2. Create an auth decision record: credential class, principal, resources, scopes, expiration, rotation, and revocation.
3. Inspect the project for hard-coded tokens, unsafe redirects, committed environment files, and mixed credential classes.
4. Define environment-variable names and a secret-provider interface without writing values.
5. For OAuth, validate exact redirect URIs, state handling, authorization-code exchange, secure token storage, refresh behavior, and revocation.
6. Present any app registration, consent, account grant, or secret creation for explicit approval.
7. After credentials are provisioned outside the transcript, perform the smallest documented read-only verification and capture only status, principal class, scopes, and safe request identifiers.

Approval Boundaries

Do not create keys, register or modify OAuth apps, authorize accounts, broaden scopes, or rotate/revoke credentials without the relevant owner.

Output

Return auth decision, required scopes and headers, secretless configuration, verification receipt, rotation/revocation owner, and unresolved access gaps.

Error Handling

Condition	Response
Operation rejects a credential class	Re-check the operation-specific auth table; do not try random headers.
OAuth redirect or state validation fails	Stop the exchange and repair the application configuration.
Scope is insufficient	Request the narrow documented scope; never silently broaden consent.

Example

mode=oauth-user; principal=user-delegated; scopes=verified-current-docs; token-output=redacted; smoke=pass

Resources

• Official documentation map

Next Steps

Test revocation and rotation in a non-production environment before depending on the credential operationally.