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TechJobs.vn
vn.techjobs/techjobs in the official MCP registry.
Endpoint https://techjobs.vn/mcp.
The registry describes it as: Search open tech jobs and companies hiring in Vietnam, refreshed hourly. No key needed to search.
We read its 45 tools on 2026-11-03. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again about every two weeks.
Connect it
The endpoint answers MCP over HTTP; that is how we read it. Add it to your client:
claude mcp add --transport http techjobs https://techjobs.vn/mcp{
"mcpServers": {
"techjobs": {
"url": "https://techjobs.vn/mcp"
}
}
}code --add-mcp '{"name":"techjobs","type":"http","url":"https://techjobs.vn/mcp"}'Some servers ask you to sign in the first time a client connects, or want a key from the people who run them; the server's own docs say which.
Let Claude Code check servers as it adds them
With the free lazaretto-guard plugin installed, when Claude Code adds a server for you or writes one into an MCP config, the plugin reads the server's tools first and asks you if one of our rules matches. Install it, restart Claude Code, then ask it to run the command above.
claude plugin marketplace add jamesdfinance-dev/lazaretto-plugins
claude plugin install lazaretto-guard@lazaretto-pluginsTools it advertises
search_jobs get_job search_companies get_company search_programs search_remote_jobs get_program list_my_cvs score_cv get_cv create_cv_variant update_cv_variant set_primary_cv delete_cv_variant list_applications list_referral_requests match_cv suggest_jobs_for_me track_job update_application list_interviews log_interview save_interview_retro get_application_insights save_insights_snapshot follow_company set_role_alert list_company_referrers watch_company_referrers request_referral register_as_referrer list_referrer_registrations set_referrer_email_notifications update_referrer_profile set_referrer_availability report_referral_request list_referrer_requests get_referrer_request_cv claim_referral_request release_referral_request mark_referral_request_referred decline_referral_request request_cv_changes resubmit_referral_request confirm_referral_contact
Tool changes
We compare every full read of this server with the one before. No change in what its tools say has been seen since we started keeping this record on 2026-10-30.
Fingerprint of its tools at our last full read (2026-11-03):
12e0a4762f9e801e. A client can hash the tools it is served the same way and compare;
the full value and a hash per tool are in this page as JSON.
Rather than checking back: subscribe to this server's tool changes (a feed, no account and no address needed). Tool names and dates only, never what a tool says.
Run this server? Show the check in your README
The badge reflects the latest read:
[](https://lazaretto.dev/mcp-registry/vn-techjobs-techjobs)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. How tool poisoning works. What we found across the registry. Check another server.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.