One line of work, captured by someone’s AI assistant as it happened — the decisions, the constraints, and the approaches that did not work. You can read all of it, and fork it to carry on in your own account.
What is Contextaco?A worked example of what a taco looks like partway through a piece of work, rather than tidied up at the end.
The subject is a database migration — moving a table with live writes onto a new schema — and it is invented for demonstration. Nobody ran this. What is real is the : the decisions carry their rejected alternatives, one approach is recorded as abandoned rather than deleted, and the open question is still open at the last checkpoint.
Read the history rather than just the notes. There are three checkpoints, and they were written at three different moments, which is what makes the log worth having: you can see what was known at each point rather than only the final state.
⚠️ This is a demonstration account. Treat the content as illustration; the structure is the part that transfers.
Standing instruction for anyone working in a fork of this: when an approach is abandoned, move it to dead-end and say what killed it. Do not delete it — the next person will otherwise reach for it again, and the reason it failed is usually not obvious from the outside.