Two Truths, One Lie
A group bluffing game refereed by your assistant in your own group chat: a rotating featured player gives two truths and one lie in private, the key stays sealed, everyone else votes privately, reveal at the deadline.
- What
- A group bluffing game refereed by your assistant in your own group chat: a rotating featured player gives two truths and one lie in private, the key stays sealed, everyone else votes privately, reveal at the deadline.
- Cost
- Free
- Needs
- Before you start: tell me in a few lines what this skill does and what installing it involves, and wait for my go-ahead.
- Install
- Copy the installer prompt below into your Muse — your agent does the rest.
A Skill Harbor house build: Two Truths, One Lie, the bluffing icebreaker classic, refereed by your own Muse inside a group chat you own. Players take turns as the featured player. Each featured player privately gives the referee three short statements about themselves, two true and one false, and the game turns on a simple pleasure: learning surprising true things about people you know, and finding out who can bluff with a plausible detail. It plays with 3 players minimum, 4 to 8 recommended, and it is asynchronous on purpose: collection runs 24 hours by default and voting 12 hours, so a turn takes hours and a full cycle, every player featured exactly once in the recorded rotation order, stretches over days around real life. Your assistant is the referee, and the sealing is the whole design. The three statements are collected in private, in a 1:1 thread with the featured player, who designates in that same private reply which statement is the lie. Before anything is published, the referee runs a written quality gate: all three statements must be plausible and comparably detailed, verifiable in principle, short and self-contained, with nothing sensitive (health, money, intimate life, conflicts, third parties). A sensitive or unverifiable statement, a pure taste or opinion nobody could be right or wrong about, is replaced before publication, privately, and the request gives only the gate reason: it never reveals, in any message, which statement is the lie. The replaced statement is kept nowhere and shown to no one. Only then does the referee shuffle the order, write the final statements and the key, which published statement is the lie, into a sealed state file, and publish the three numbered statements in the group thread. From publication on, neither the statements nor the key changes. Votes are private for a reason: a visible vote anchors the next ones. Every player except the featured player votes in 1:1, one number, changeable until the deadline, and the referee answers only "received". Silence at the deadline is an abstention. At the deadline, and not before, the referee reveals the lie, the detail of the votes, and the points in a single message. Scoring is fixed in advance: a correct guesser earns +1, a fooled guesser earns nothing, and the featured player earns +1 per fooled voter capped at 2 per turn, so one perfect bluff cannot win a whole cycle. An abstention earns the featured player nothing. A player who already knows a statement is true or false, because they were there or were told, declares it privately and abstains on that turn under the honour rule, with no reason ever given in the thread. A tie at the top of the final standings means co-winners. Honest prerequisites: installing the skill files needs nothing at all. Playing needs a Muse assistant and a messaging account you connect to it yourself, Messenger first, plus a group on it that you designate and that belongs to you; the referee writes from your own account, and every public message needs your approval before it is sent. If the host also plays, the collection instruction goes out on a template approved once, its filled versions are never shown to a playing host, and the limit is stated plainly in the announcement: secrecy toward a playing host is procedural, a matter of trust, not a technical wall. This listing is under the Skill Harbor House License v1.0: free to use, all rights reserved, not open source.
Version:
Install
Copy the install package below, then paste it into Muse🧪 Installed in our test VM · Oct 10, 2026The install prompt below already includes the vetting steps: your agent follows the community checklist before installing anything with executable code. Want more?
Before you start: tell me in a few lines what this skill does and what installing it involves, and wait for my go-ahead. Prerequisites: none for installing the skill files. To play a game afterward, I need a messaging account connected to my assistant (Messenger first) and a group on it that belongs to me and that I designate; the assistant referees from my own account, and public game messages need my approval before they are sent. Install "Two Truths, One Lie" for me. It turns my assistant into the referee of a bluffing game in my own group chat: a rotating featured player privately gives two true statements and one lie, the referee seals which one is the lie before publishing the three statements in a shuffled order, the other players vote privately, and the featured player scores 1 point per fooled voter capped at 2. Source: https://raw.githubusercontent.com/skill-harbor-hq/house-skills/main/two-truths-one-lie/SKILL.md Helper files, in the same skill folder in the repository (two-truths-one-lie/): references/group-messaging.md, references/two-truths-one-lie.md, and the LICENSE file at the root of the skill folder. 1. Download SKILL.md, the two helper files, and LICENSE into a temporary folder, keeping the helper files inside a references subfolder and LICENSE beside SKILL.md. 2. Compare each file with the fingerprint from Skill Harbor's review of 2026-10-10: - SKILL.md: SHA-256 8ff0042ce6d4144f3e1ab77b4a96ee5887a4dbfeafb851d1f3bd96371a5ba997 - references/two-truths-one-lie.md: SHA-256 b84701ffa8bcc9bc555647afe2430e96bef1f32ef9ab5949b2cb38647bfd09a6 - references/group-messaging.md: SHA-256 3e92c77f104757180cfa9e0e3530c45113e4b8f84614770754469aef9eecaff4 - LICENSE: SHA-256 d7db27db632a56a432d4f883c89507f031215e665f4806dfcd2dea15c0fb8271 If a file does not match, it changed since the review: do not install it yet, tell me what you found and let me decide. 3. Read the files and tell me in plain words: what the skill does when used, whether it connects to a service, whether it reads or sends any personal information or keys, and anything that seems unusual. 4. When I say yes, copy the files into my skills folder, in a folder named "two-truths-one-lie", keeping the two helper files inside their references subfolder and LICENSE beside SKILL.md. 5. Check the copy opens correctly (valid frontmatter, files in place) and tell me what was installed, where, and what is left for me to do: connect my messaging, designate my group, and fill in the player config in my own data folder. GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Rules: only touch the temporary folder and the install target. If something seems off, stop and ask me.
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Questions
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