HireLab Screener

Lets your Claude read from your HireLab Screener ATS. Read-only and safe: it logs in as a service account and calls your existing owner-scoped API, so all your tenant-isolation rules apply. Claude can search and read; it cannot edit or delete.

What Claude can do (15 tools)

Read (always on)

Tool	What it answers
search_candidates	semantic search — "senior PLC engineer in Pune under 20 LPA"
search_database	filtered search by company/location/CTC
list_mandates	your open roles
get_pipeline	candidates in a mandate + stage
get_candidate	one candidate's full profile
get_today_tasks	your action items
get_overview	business snapshot

Write / Actions (on when MCP_ALLOW_WRITES=true, the default)

Tool	What it does	Confirmation
add_candidate	add a new candidate to a mandate	normal
move_candidate_stage	move a candidate's stage	normal
update_candidate	edit candidate fields (CTC, notice, feedback…)	Claude confirms (edits data)
schedule_interview	schedule an interview round	normal
add_tags	tag a candidate	normal
create_task	add a to-do to the Command Center	normal
create_reminder	create a follow-up reminder	normal
send_candidate_email	send a real email to a candidate	Claude confirms (sends email)

You can now just tell Claude what to do — e.g. "Add Ravi Kumar (ABB, 18 LPA, Pune) to the L&T PLC mandate and set a reminder to call him tomorrow."

Safety

• Every action goes through your ATS's owner-scoped API, so Claude only ever touches your company's data.
• Write tools carry MCP annotations, so Claude surfaces/asks before edits and email sends.
• No delete tools are exposed — deletions stay in the app.
• Flip MCP_ALLOW_WRITES=false in Render anytime to instantly go back to read-only.

One-time setup

1. Create a service account in your ATS

Make a normal ATS user (e.g. username claude-mcp) with a strong password. Using a dedicated account means you can revoke MCP access anytime without touching your own login. It must belong to your company so it sees your data.

2. Deploy this folder as a NEW Render service

• Put this folder in a Git repo (or a subfolder) and create a new Render Web Service pointing at it (it is separate from your ATS service).
• Render will use render.yaml (build: install requirements, start: python mcp_server.py).
• In the new service's Environment, set:
  • ATS_BASE_URL = your ATS URL, e.g. https://hirelabscreener.onrender.com (no trailing slash)
  • ATS_USERNAME = claude-mcp
  • ATS_PASSWORD = that account's password
  • MCP_SECRET = a long random string (e.g. 30+ characters). Keep it private.
  • MCP_ALLOW_WRITES = true to allow actions (add/update/email), or false for read-only. Default true.
• Deploy. Check https://<your-mcp-service>.onrender.com/health returns {"status":"ok"}.

3. Add it to Claude

• Claude.ai → Settings → Connectors → Add custom connector.
• Name: HireLab Screener
• URL: https://<your-mcp-service>.onrender.com/mcp ← just /mcp, no secret in the URL.
• Leave OAuth Client ID / Secret blank. Click Add.
• Claude will open a small "Connect HireLab Screener" page — enter your MCP_SECRET there once and click Authorize. Claude is now connected.
• In a chat, open the connectors menu, enable it, and ask: "List my open mandates."

Why the secret page? claude.ai's web connector flow requires an OAuth sign-in step even for personal servers, so the connector performs a lightweight OAuth handshake. Your MCP_SECRET is the one-time "sign in". Tokens last 30 days; changing MCP_SECRET instantly revokes access.

Security notes

• The MCP endpoint is hidden behind your secret path; without it, requests get 404.
• Tools are read-only. To add write actions later (with confirmation), extend TOOLS in mcp_server.py.
• Rotate access by changing MCP_SECRET (update the connector URL) or by disabling the service account in your ATS.
• Free Render services sleep when idle; the first call after a nap may take ~30s to wake. Upgrade the plan if you want it always-on.