// MCP TOOL REFERENCE

authenticate_coros

Log in to COROS Training Hub. Stores auth token for subsequent calls. Also checks COROS_EMAIL/COROS_PASSWORD env vars for auto-login. WARNING: Logging in via API invalidates the web app session.

ServerCoros Workout
CategoryExecute

How to control authenticate_coros ↓

WHAT IT DOES

What authenticate_coros does on Coros Workout

AI agents invoke authenticate_coros to trigger actions in Coros Workout. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

THE RISK

High Risk

Why authenticate_coros needs a policy

This tool performs an external authentication operation that stores credentials/tokens and has a destructive side effect (invalidating the existing web session). It triggers an external operation with irreversible consequences for the current session, placing it in Execute. The session invalidation side effect elevates severity to high.

From the tool's definition 'Log in to COROS Training Hub. Stores auth token for subsequent calls' and 'WARNING: Logging in via API invalidates the web app session.'

Documented attack patterns abuse exactly the kind of access authenticate_coros gives an agent:

POLICY

How to control authenticate_coros

PolicyLayer is an MCP gateway — it sits between your AI agents and Coros Workout, and nothing reaches the server without passing your rules. This is the rule we recommend for authenticate_coros:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "authenticate_coros": {
      "limits": [
        {
          "counter": "authenticate_coros_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

authenticate_coros stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Coros Workout — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Coros Workout tools

Write create_workout Create a strength workout on COROS Training Hub. Resolves exercise names from the catalog, Write update_exercises Fetch the latest exercise catalog from COROS APIs and rebuild the local catalog. Requires Read check_coros_auth Check if COROS authentication is available (from stored token or env vars). Read list_workouts List workouts from COROS Training Hub. Read search_exercises Search the COROS exercise catalog (~383 strength exercises). Filter by name, muscle group,

All 6 Coros Workout tools →

Execute tools on other servers

Android Forensics ADB MCP Server adb_shell_command EMBA-MCP run_emba_scan Frida Game Hacking MCP remove_breakpoint Procmon request_elevation

Go deeper

High-risk tools in Coros Workout → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about authenticate_coros

What does the authenticate_coros tool do? +

Log in to COROS Training Hub. Stores auth token for subsequent calls. Also checks COROS_EMAIL/COROS_PASSWORD env vars for auto-login. WARNING: Logging in via API invalidates the web app session. It is categorised as a Execute tool in the Coros Workout MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on authenticate_coros? +

Register the Coros Workout MCP server in PolicyLayer and add a rule for authenticate_coros: 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 Coros Workout. Nothing to install.

What risk level is authenticate_coros? +

authenticate_coros is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit authenticate_coros? +

Yes. Add a rate_limit block to the authenticate_coros 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.

How do I block authenticate_coros completely? +

Set action: deny in the PolicyLayer policy for authenticate_coros. 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.

What MCP server provides authenticate_coros? +

authenticate_coros is provided by the Coros Workout MCP server (rowlando/coros-workout-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Coros Workout tool call.

Start from Coros Workout, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

Free to start. No card required.

6 Coros Workout tools catalogued and risk-classified — across an index of 43,000+ MCP servers.