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×Use Claude with Tareno to write Mastodon posts that follow your server's rules, add alt text and readable hashtags and check the length against your server's limit, approved by you in Tareno.
Yes. Paste your server's rules and norms into a Claude Project and Claude writes posts that follow them, with alt text and readable hashtags, checks the length against your server's limit and saves a draft through Tareno. The limit is set by each server, so you confirm yours. Scheduling stays pending until you approve it in Tareno.
Last reviewed 2026-10-24 · Markdown version for AI agents
Mastodon is not one network but many servers that federate, and each server has its own rules, its own culture and its own limits. A post that is perfectly acceptable on one can be unwelcome on another: content warnings expected, hashtags for discovery, alt text on every image. A community garden or a neighborhood association that joins a regional server does best by writing to that server's norms from the first post. Claude can hold those norms in a Project and apply them to every draft. This page follows a community garden through a spring announcement, including the character limit that depends on the server and the Mastodon practices that are habits, not rules.
Imagine a community garden on a regional Mastodon server whose rules ask for alt text and ban promotional hashtags. The coordinator pastes the rules and a short announcement into a Claude Project. Claude drafts a post of 420 characters with the date, the place and what to bring, adds alt text for the photo of the beds, and writes the hashtags in capitalized words so screen readers can read them. It asks which character limit her server uses, because the documentation's example server has 500 but servers may differ. She confirms 500, and Claude saves the draft with create_drafts for her account.
Paste the rules, the about page and any posting norms into a Claude Project. Claude applies what is written, and does not guess what a server expects.
Mastodon's documentation says character and media limits are set by each server, with 500 characters and four attachments as the example. Check yours and tell Claude.
Ask for a post that follows the rules, including whether a content warning is expected for the topic. Claude flags anything the rules discourage, such as promotional hashtags.
Ask for a description of every image and hashtags written in capitalized words. That is a common courtesy for screen readers, not a protocol rule.
Claude confirms the account with list_accounts and saves the text and images through create_drafts. Tareno's configuration for Mastodon allows up to four images and gives links a preview.
Give a day, a time and an IANA time zone. The request becomes a pending action, and you approve it in the Tareno dashboard.
Here are the rules and about page of our Mastodon server: [text]. For the posts I will save in Tareno, list what they require or discourage for posts: content warnings, hashtags, alt text, self-promotion, anything about automation. Tell me what is unclear, and do not write a post yet.Write a Mastodon post for our community garden's spring planting day on [date] at [place], within [500] characters, following the rules you listed. Add alt text for the photo of the beds, use hashtags in capitalized words and tell me if any rule makes you want a content warning.Count the characters of the post, treating every link as 23 characters as Mastodon's documentation does for its example server, and tell me how many are left. If our server's limit is different from 500, tell me what I should check before I rely on the count.Use Tareno to confirm my Mastodon account [handle@server] and save the approved text and photo as a draft. Return the draft ID and the text, and do not request a time until I give you the day and the time zone.As configured in Tareno on 2026-10-24. The live rules for your own account come from the get_platform_schema tool.
Source: Mastodon documentation: statuses and instance configuration, read on 2026-10-24. Platform rules change; check the page before you rely on a number.
https://tareno.co/api/mcpUse the same Tareno account across supported clients. Open the relevant setup guide for authentication, first use, reconnect, and revocation.
list_accountsChecked:
Because each server sets its own. Mastodon's documentation gives 500 characters and four attachments as an example, not as a rule, so a server can allow more or fewer. Check yours before relying on a count.
That depends on your server's norms and the topic. Claude reads the rules you pasted and tells you if they suggest one. Whether to use it is your decision, and your server's moderators have the last word.
Because screen readers read each word separately when they are capitalized, and a run-together lowercase hashtag is read as nonsense. It is a widely shared courtesy on Mastodon, not a requirement of the software.
On the documentation's example server, every link counts as 23 characters regardless of its length. Claude uses that for its count and tells you to verify the figure on your own server.
No. Tareno does not read posts or replies on Mastodon. You read replies in the app, and Claude can help draft answers if you paste them in.
No. A scheduling request becomes a pending action in Tareno, and Mastodon receives the post only after you approve it in the dashboard. `get_action_status` shows what happened afterwards.