Word Guess

What Word Guess is for

A real, playable 5-letter word-guessing game — not a rules reference. Every guess is validated against a real dictionary and scored with genuine per-letter feedback, including correct handling of duplicate letters.

What it does

new_game(max_tries) picks a secret 5-letter word from a curated common-word answer list and returns the initial state. make_guess(state, guess) checks your guess against a 4,000+ word valid-guess dictionary and returns real per-letter feedback:

• correct — right letter, right position.
• present — right letter, wrong position.
• absent — the letter isn't in the word, or every copy of it is already accounted for elsewhere in your guess.

The duplicate-letter rule, computed correctly (not hand-waved): each copy of a letter in the answer can back at most one correct/present mark in your guess. Exact-position matches are resolved first and consume a copy of that letter; only leftover copies can back a "present" mark elsewhere. So if you guess a letter twice but the answer only has it once, exactly one of your two letters gets credit and the other is absent — never two "present"s, never a phantom second "correct". This is the single most common bug in word-guessing game logic, and it's covered by explicit tests here.

check_word(word) tells you whether a word would be accepted as a guess, without spending a turn. get_hint reveals one still-unknown correct-position letter. render_game renders the current guess grid as readable text. game_rules explains the mechanic without a live game.

Word lists

The valid-guess dictionary (4,000+ words) is drawn from this catalog's system hunspell-en-us dictionary (SCOWL-derived, freely licensed for spell-checking use), restricted to plain 5-letter root words. The curated answer list (1,000+ words) is Unify Dynamics LLC's own hand-curated common/everyday word list, restricted to 5-letter entries. Both lists were reviewed and a short blocklist of offensive terms was removed from each. Neither list is copied from any single third-party Wordle-style word list.

Stateless architecture — and its one honest trade-off

Word Guess keeps no server-side session. Every tool call receives the full current game state as a plain JSON object and returns the new state; the calling assistant holds and passes it between turns. That means the returned state necessarily contains the actual secret word in plain form — there is no other place for a fully stateless server to keep it between calls. The assistant using this connector is trusted not to read that field back to the player before the round ends. This is a known, honestly-documented limitation shared by every fully stateless word-guessing game — not a bug, and not something a "hash the secret" trick actually fixes when the server has no memory at all between calls.

What it is not

Not a copy, clone, or reference implementation of any specific trademarked word game — this is a generic letter-feedback mechanic under original branding. Fully local, zero upstream calls, nothing stored.

Word Guess — Privacy Policy

Effective 27 September 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Word Guess is. Word Guess is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf to run a real, playable, fully local 5-letter word-guessing game. You interact with your assistant; the assistant sends us only the arguments needed for that one move — a game state object and your guess.

What we receive. The game state and guess for each tool call, the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant, and a Pro API key if you have one), and standard server logs.

Everything is computed locally and nothing is stored server-side. There is no upstream call at all, live or otherwise, and no game state or query is logged in request bodies, recorded, or used to train anything. The entire game — including the secret word — exists only inside the state object that travels between you and your assistant; our server never retains a copy after answering the request.

What we do not receive or store. We do not receive your conversation with the assistant or your name, and each request is answered independently — nothing carries over between requests. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting-provider access logs, which contain IP addresses and request paths but not request bodies, are retained for up to 30 days for security and abuse prevention.

Sub-processors. None — the entire game engine and word lists are bundled with the server and run locally. Hosting: Vercel (United States regions).

Legal bases and your rights. Our processing is necessary to provide the service you request through your assistant. Because we store no personal data beyond short-lived logs, requests to access, correct or delete personal data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. We do not sell or share personal information and do not use your data to train models.

Children. Word Guess is a general-audience service operated by the adult using the assistant.

Changes. We will post changes here with a new effective date.

Word Guess — Terms of Service

Effective 27 September 2026. These terms govern use of the Word Guess connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Word Guess runs a real, playable 5-letter word-guessing game with genuine dictionary validation and per-letter feedback logic, accessed through an AI assistant or directly over MCP or HTTP.
2. Original mechanic, original branding. Word Guess implements a generic letter-feedback word-guessing mechanic under its own name and mark. It is not affiliated with, endorsed by, or a reproduction of any specific third-party trademarked word game, and no third-party branding is used anywhere in this Service.
3. Stateless by design. The Service keeps no server-side game session. Each tool call must include the complete current game state; the calling assistant is responsible for holding and passing it faithfully. The state necessarily contains the secret word in plain form, since a stateless server has no other place to keep it — see the Privacy Policy for the full explanation of this trade-off.
4. Word lists. The valid-guess dictionary and curated answer list are drawn from this catalog's own hand-curated and freely-licensed sources, described in the docs; word inclusion reflects general English usage and is not a guarantee of suitability for every audience.
5. Acceptable use. Automated use within the published rate limits is welcome.
6. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time.
7. Data. Our Privacy Policy describes what we process. In short: your move is answered from the game state you send us, and nothing is stored.
8. Pro keys. Optional Pro API keys are issued at our discretion, are personal to the holder and may be revoked for abuse.
9. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service. Our total liability is limited to US $100.
10. Governing law. California law; venue in San Mateo County, California.
11. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/wordguess5

Word Guess support

Email agent@connectorbay.com. We answer within two business days.

• MCP endpoint: https://wordguess5.connectorbay.com/mcp
• REST API: https://wordguess5.connectorbay.com/openapi.json
• Live status: https://wordguess5.connectorbay.com/health

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Word Guess never asks for them.