How to Write a Mastodon Profile Bio and Pinned Post from a Creator Brief
Mastodon bios rot when they invent 10k followers and a verified badge. Caps were 160 and 500. Count the characters.
The matching generator is the Mastodon Profile Bio and Pinned Post from a Creator Brief prompt. Browse related cards in the PromptDig library (Browse more prompts). When a filled run survives, share the version you actually use (Share a prompt).
Lock handle and character caps first
Write a Mastodon profile bio and pinned post from a creator brief. No invented follower counts or instance rules. Start by filling Inputs, not by asking the model to remember last week's run. If a field is blank, write NONE or NOT IN INPUTS and leave it blank through Generate. The card is built so the model cannot honestly invent a number, owner, URL, or command that you did not paste.
Paste these fields before you hit run:
Creator brief: [Brief]
Instance handle I may use: [Handle]
Character caps I will honor: [Caps]
Topics I cover: [Topics]
Links I may place in fields: [Links]
Pinned post goal: [Pin]
Words I must not use: [Banned]
What I must never invent: [Never]
Hashtags I allow (or NONE): [Tags]
Output format: [Format]
That inventory is the honesty ledger. Anything that does not appear there is forbidden in the draft. If you catch yourself adding a nice-to-have after the run, you are no longer using the card. You are ghostwriting. Put the extra fact in Inputs and run again.
Profile fields only from pasted Links
Generate is numbered on purpose. Do not skip a step because the first paragraph looked done. The early steps exist to stop later prose from smuggling claims.
Walk the Generate list in order:
- Honesty ledger: Brief, Handle, Caps, Topics, Links, Pin, Tags. Forbidden: follower counts, verification, instance law invent.
- Bio draft under Caps. Count characters.
- Profile fields: only Links URLs.
- Pinned post from Pin goal using Topics only.
- Hashtags: only Tags if not NONE.
- Refuse: engagement bait, fake metrics.
- Alt text note if Pin references an image and user described it; else skip.
- Compliance pass: cut Banned and Never. Format as Format.
If a step asks for a version lock, quote the version from Inputs in the output. If a step asks for a refuse list, keep the refuse list in the published artifact, not in a sidebar you delete. Reviewers should see what the model was not allowed to do.
Pinned post follows Pin goal only
Most failures are the same shape: a missing field gets a confident fill. A conversion rate appears. A Gradle task appears. A flash point appears. A caption appears on a job that asked for slide text only. Your review is to search the draft for numbers, names, and commands, then grep Inputs. No match means cut.
Honor the constraints as hard stops, not vibes:
- Mastodon bio + pinned post from Brief. Not a feed caption pack.
- Never invent follower counts or verification.
- Honor Caps with printed counts.
- Only use Links URLs provided.
- No emojis unless Brief includes them.
When the card says not legal advice, not certification, not an exam dump, or not a caption engine, that sentence belongs at the top of the output. Deleting it to look more finished is how you inherit risk.
Hashtags only from the allow list
Finish with the compliance pass the prompt already asks for. Quote the banned-word hits. Cut them. Print character counts when the job has a cap. Print word counts when the job has a budget. List gaps as gaps. Five missing facts are more useful than one smooth paragraph.
Tags on the card (mastodon profile bio pinned, mastodon creator brief, no invented follower counts) are a reminder of the job shape, not an invitation to wander into a neighboring cluster. If you need a different surface, open a different PromptDig card rather than stretching this one.
Fill the card, then run
Replace every bracket. Run on ChatGPT, Claude, or Gemini. Read the ledger first, then the artifact. If the model invents a commit, KPI, DOI, PEL, bid, or logo, discard the run. Tighten Inputs. Run again. Share the filled card that survived, not the first draft that sounded done.