QAmcp

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Directory / Candidate Falcon

Candidate Falcon

Q: Is Candidate Falcon MCP server safe?

QAmcp's test on 9 Nov 2026: None of the hidden-instruction wordings we know were found in its 6 tool descriptions. Its error messages showed no secrets or internal details. 4 of its 6 tools are labeled read-only; the others may change or send things. Overall it scored 85/100 on 9 Nov 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by candidatefalcon.com · https://candidatefalcon.com/mcp

Prep for hiring assessments and one-way video interviews, with practice for HireVue-style games.

6 tools✓ no account neededPricing: on their site

See pricing →Visit website

85 /100

PASS · WITH NOTES

13 of 13 checks · 9 Nov 2026

Test it now for current results

At a glance

Runs where: On their server. What you send to it goes to them.
What you need: Nothing: it answered without a login
Tools: 6 tools
Its own safety labels: 4 read-only, 2 labeled as changing things
Memory it takes: About 1,400 tokens of your AI's memory, just for its tool descriptions
Largest answer: About 7.4 KB in our test
Speed: Average answer in our test: 202 ms

Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 9 Nov 2026.

Is Candidate Falcon MCP server safe?

None of the hidden-instruction wordings we know were found in its 6 tool descriptions.
Its error messages showed no secrets or internal details.
4 of its 6 tools are labeled read-only; the others may change or send things.
Overall it scored 85/100 on 9 Nov 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What this test does not check

Its source code and packages.
What a tool quietly does behind the scenes, such as writing a file or calling another service.
Instructions hidden inside live tool answers. We only look for those in tool descriptions.
Hidden instructions worded in a way our list doesn't know yet.
Tools that could change something. Those are read, never run.

What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection

Known security advisories

It lists no public code, so there is nothing to look up in GitHub Security Advisories or OSV.dev. QAmcp tests how a server behaves. It does not scan source code.

What it can do

6 tools, in the server's own words.

search_free_materialsread-only

Searches CandidateFalcon public courses, lessons, interview questions, articles, and comparisons and returns matching titles, descriptions, source URLs, and ID…

read_free_materialread-only

Returns the text of one public CandidateFalcon material by the ID from search_free_materials, with its title and source URL.

open_hirevue_gameread-only

Shows an interactive CandidateFalcon practice game modeled on a HireVue game-based assessment.

get_game_resultsread-only

Returns the connected user's recent completed practice results from the website and from chat, newest first: game, score, rounds, duration, correct/incorrect/s…

start_game_session

Creates a new practice session record for the connected user when a game starts in the interface, and returns its ID.

save_game_result

Saves the final result of a session created by start_game_session and marks it completed.

Test results

Safe mode: only tools labeled read-only were run. How the test works

!
Ready for the newest MCP version
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
note
!
Every tool is described
3 warnings
- !search_free_materials: Inputs with no description: offset, limit
- !read_free_material: Inputs with no description: offset, limit
- !save_game_result: Inputs with no description: session_id, score, total_levels, duration_seconds, metrics
note
!
Resources and prompts work
1 warning (1 resource)
- !1 of 1 resources have no description, so people can't tell what they contain.
- and 2 more
note
✓
ConnectsConnected in 153 ms
pass
✓
Lists its toolsFound 6 tools
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Tools work with good inputs
All good
- ✓search_free_materials: Worked (358 ms)
- ✓read_free_material: Answered with an error, probably because of our sample input: Material not found. Use an ID returned by search_free_materials.
- –get_game_results: Needs you to sign in, so it was not tested (not counted against the server)
- –open_hirevue_game: Not run: labeled read-only, but its name starts with "open", which usually means it changes something. Skipped to be safe: if it only reads, a clearer name helps AI apps too, or test again with --owner
- –start_game_session: Not run: labeled as changing data
- –save_game_result: Not run: labeled as changing data
pass
✓
Bad inputs give a clean error
All good
- ✓search_free_materials: Refused wrong type for "query" with a clear error
- ✓read_free_material: Refused missing required input "id" with a clear error
- ✓read_free_material: Refused wrong type for "id" with a clear error
- ✓get_game_results: Refused wrong type for "game" with a clear error
pass
✓
Tools work togethersearch_free_materials → read_free_material: read_free_material found what search_free_materials returned (id = "/blog/")
pass
✓
Fast enough
All good
- ✓Connecting took 153 ms
- ✓Listing tools took 19 ms
- ✓Average tool answer: 202 ms
- ✓search_free_materials: Slowest tool: search_free_materials (358 ms)
pass
✓
No secrets leakedChecked 7 error messages: no secrets or internal details
pass
✓
Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
pass

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://candidatefalcon.com/mcp

Show this score on GitHub

Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.

[![QAmcp score](https://qamcp.dev/s/com-candidatefalcon-candidate-falcon.svg)](https://qamcp.dev/s/com-candidatefalcon-candidate-falcon.html)

Score over time

9 Nov 202685

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Candidate Falcon, signed in with GitHub, one per person. Reviews never change the score.

Is this your server? Get an alert the moment it breaks.

QAmcp Monitor tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. Free for 1 server, no card.

Have a concern, or want it removed? Ask us and we'll take it off the list. How the directory works