secret-set
Sets a repository, organization, or environment GitHub Actions secret. Secret values are sent via stdin and never returned.
This record as markdown: /tools/io-github-dave-london-pare-test/secret-set.md
What secret-set does on Test
AI agents use secret-set to create or update resources in Test, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Test environment.
Why secret-set is rated Medium
This tool creates or modifies GitHub Actions secrets, which are persistent configuration changes. While it involves sensitive data, it is reversible (secrets can be updated or deleted by another operation), so it is Write rather than Destructive. The severity is high because misconfigured secrets could expose credentials or grant unintended access, but the blast radius depends on what secret is set and where.
From the tool's definition Tool description states it 'Sets a repository, organization, or environment GitHub Actions secret', which is a create/modify operation that persists configuration state.
Attacks that exploit this kind of access
The rule that runs secret-set safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Test, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For secret-set, this is the rule to start with:
secret-set stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Test, apply this rule, and every secret-set call is checked against it from then on.
Questions about secret-set
Sets a repository, organization, or environment GitHub Actions secret. Secret values are sent via stdin and never returned. It is categorised as a Write tool in the Test MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Test MCP server in PolicyLayer and add a rule for secret-set: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Test. Nothing to install.
secret-set is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the secret-set rule in your PolicyLayer 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 PolicyLayer policy for secret-set. 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.
secret-set is provided by the Test MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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