Things that I worked on:

• inat2wiki tool to connect iNaturalist to the Wiki universe.

• TopicTagger: a tool to batch tag scientific articles
• QuickLit: a tool to suggest Wikidata edits

• Wikidata Bib:a Wikidata-powered dashboard which shows the stats about what I read for my PhD.
• ANN: A project to annotate biomedical text with Wikidata IDs.
• WikiORA: a gene over-representation analysis bioinformatics tool based on Wikidata and Wikipedia.
• User:TiagoLubiana/cell-ontology.js, an userscript to connect Wikidata entries to the Cell Ontology

I have not done any work for the tools below, but they are worth sharing:

• This gadget to see who edited each statement and label is incredibly usefulː User:Ricordisamoa/WikidataTrust.js
• Nikki's key shortcuts are also a huge time saver: User:Nikki/KeyShortcuts.js
• These user-friendly tools are really nice to edit Wikidata:
  • Author Disambiguator and other bibliography related tools (see curation by UCLA Library here)
  • Wikidata Art Depiction Explorer to add "depicts" statatements and/or explore works of art.
  • sparql_rc:Get diffs for all items matching a SPARQL query, for a date range
• Toolforge list of Wikidata-related tools

Properties proposed

• Cell Ontology ID (P7963)
• entry receptor (P8339)
• has marker (P8872)
• derived from organism type (P9072)
• equivalent in higher rank taxon (P10019)
• facilitates flow of (P10228)
• Reflora ID (P10701)
• Unidades de Conservação no Brasil ID (P11954)
• Moure's Catalog ID (P13523)

Tips

• By adding ?safemode=1 you can load a page without gadgets/common.css/common.js