# Delta for web-extract-tavily

## ADDED Requirements

### Requirement: Tavily Extract Backend
The system MUST use Tavily as the web_extract backend, reachable via the local proxy at http://127.0.0.1:8971.

#### Scenario: Extract works
- GIVEN the Hermes web tool calls web_extract
- WHEN the URL is a normal web page
- THEN the page content is returned as markdown
- AND the request goes through the local proxy to the Tavily API over SOCKS5

#### Scenario: Proxy is down
- GIVEN the tavily-proxy.service is stopped
- WHEN web_extract is called
- THEN the call fails with a connection error (not a silent wrong result)

### Requirement: Proxy Auto-Start
The system MUST start tavily-proxy.service automatically at boot and restart it on failure.

#### Scenario: Boot
- GIVEN the host boots
- WHEN systemd starts
- THEN tavily-proxy.service is active
- AND it listens on 127.0.0.1:8971

#### Scenario: Proxy crash
- GIVEN the proxy process exits unexpectedly
- WHEN systemd detects failure
- THEN the service restarts automatically

### Requirement: Tunnel Dependency
The proxy MUST depend on the SOCKS5 tunnel (telegram-tunnel.service); it must not start before the tunnel is up, and must restart if the tunnel is unavailable.

#### Scenario: Tunnel down
- GIVEN telegram-tunnel.service is inactive
- WHEN tavily-proxy.service is requested
- THEN the proxy stays stopped (or retries) until the tunnel is back