mavis

tac_plus-ng, and legacy sources for tac_plus, ftpd, tcprelay

Research-first Agent Skill that runs long-horizon paper pipelines with evaluator gates, heartbeat watchdogs, resume controls, and manifest cleanup.

Manage vaccinations in schools (Mavis) is a digital tool designed to help school age immunisation service (SAIS) teams manage their vaccination programmes end to end.

A Python-powered virtual AI assistant with OpenAI GPT, Ollama, LangChain, embeddings, chat history, and SQLite3 database. Includes a clean API backend and integrates with an external Web UI. Fast, modular, extensible — your Multi-tasking AI Virtual Intelligent Solution.

Paste a timestamp in any shape - seconds, milliseconds, ISO, or whatever a log produced - and get every other form of it. The unit is worked out from the digit count, because guessing wrong by a factor of a thousand is the whole problem, and the guess is always shown rather than applied silently.

Checks whether two colours are readable together, using the WCAG contrast formula, and tells you which accessibility level the pair passes. Use this when designing anything people have to read.

What is actually filling the disk, not just how full it is. Names the biggest caches, downloads and single files. The slow scan runs detached and the answer is spoken from cache, so it always arrives in about a second. Only ever reports; deletes nothing.

Says which voice Mavis is actually using and why - whether a provider key is set, which engine is selected, and what to change if it sounds wrong. Use this when the user says the voice sounds robotic, or asks why Mavis is not talking properly.

Pick a colour, get matching harmonies and a tint ramp, and check text contrast against the real WCAG ratio.

Reports the laptop battery level, whether it is charging, and roughly how long is left. Use this when the user asks about battery, charge, or how long the machine will last unplugged.

SHA-256, SHA-1 and MD5 for text or a whole file, with a compare box that tells you plainly whether two hashes match. Runs on the file in place - nothing is uploaded.

Estimate how many tokens a prompt costs before you send it, and what that works out to at the rates you are actually paying across every provider Mavis supports.

Shows how your colours look to the one in twelve people with colour vision deficiency, and tells you which pairs become indistinguishable. Use this when checking a design, a chart or a status indicator.

A timer for the 20-20-20 habit: every twenty minutes, look twenty feet away for twenty seconds. Keeps count of whether you actually did it. A timer, not health advice.

Knows who is in the house by the devices they carry, and can trigger actions when they arrive, leave or change room. Home and away works with no extra hardware; room-level needs a Bluetooth receiver per room, and says so rather than guessing. Everything stays in a SQLite file on your machine.

Shows every font on this machine, previewed in your own words, with search. Use this when the user is choosing a typeface or asks what fonts they have.

Build and test regular expressions with live highlighting, a plain-English explanation of what each part does, and the captured groups laid out. Use this when the user is writing a regex, debugging one that does not match, or trying to understand one somebody else wrote.

Tells you how many programs launch themselves at boot and names the main ones - the usual reason a machine takes three minutes to become usable.

Format, minify, sort and validate JSON, with errors that point at the exact line and column rather than just a character offset.

Renames a whole folder of files at once - find and replace, numbering, case, prefixes and suffixes - and shows you every old and new name before it touches anything. Refuses to run if two files would end up with the same name.