The entry said to measure first and put the number in the commit, so: a plain page renders in 14µs, a twelve-picture gallery in 1.23ms. Of that, ~102µs per picture was reading, hashing and decoding bytes the previous request had already read. Remembering that one fact — keyed by path, size and modification time — brings the same gallery to 63µs. 19.5× faster, 21× fewer bytes allocated, twenty-odd lines. After which nothing is slow enough to justify caching whole pages, so ADR-0044 declines the page cache and leaves the parked validity model parked, now with a measurement rather than an intuition behind its trigger. That parked model has five axes and was written before any code existed. The problem it would have been built for turned out to be one repeated file read. Benchmarks live in internal/web so they measure through the real handler, which is also what conventions.md wants before any cache goes in the render path. The invalidation risk has its own test: an edited picture is a different key, so the memo cannot serve yesterday's dimensions. Everything runs clean under -race, since the map is read by concurrent requests.
khosra
A flat-file personal publishing engine in Go. Point the binary at a directory of Markdown and it becomes an owned, networked home for fiction, webcomics, art, and essays, in English and Bengali. The site's content lives in its own repository, not this one (ADR-0011).
Build and run
Needs Go 1.26+ and git; nothing else.
make build # or: go build -o khosra ./cmd/khosra
make run SITE=/path/to/site # or: ./khosra -site /path/to/site
make test
make verify # everything the project enforces — green before every commit
make help lists targets. make is a convenience wrapper; go build, go test and
./scripts/verify.sh work on their own and are what the gate uses.
A site root is a directory holding content/, and optionally static/ and templates/. It lives in its
own repository, not this one — the binary is pointed at it.
If you are a human: start at HARNESS.md — what the scaffolding is, how to use it, and what to decide.
If you are an agent: start at CLAUDE.md — the constitution and the read order. It is loaded for you automatically; this file is not a prerequisite and nothing here is a rule.