# Change log Newest first. Every commit that touched a file served on this site: the source files, the skills, and the two Brain resources. Built from git history at generation time, so a shallow clone lists fewer entries. ## [2026-09-22] docs: vision is pieces, trust, floor, and range Commit [cc20223](https://github.com/joelhooks/rat-stack/commit/cc20223d97b3571519233d43945ce93c7d34c295). ## [2026-09-22] fix: document the 429; derive the serve test from the registry Commit [91a75ce](https://github.com/joelhooks/rat-stack/commit/91a75ce2fc8407320d14ba84cc87047e69efde63). ## [2026-09-22] docs: format once after renaming the workspace Commit [c09ed11](https://github.com/joelhooks/rat-stack/commit/c09ed118f38936d30721e26c1ff640296c001090). ## [2026-09-22] docs: make it yours, promise proofs, and a plainer vision Commit [16b586b](https://github.com/joelhooks/rat-stack/commit/16b586bfd4714505da79f2af881719555dc88931). ## [2026-09-22] feat: learn-alchemy skill Commit [6385434](https://github.com/joelhooks/rat-stack/commit/638543479700f06b1c3769e0b7bd625a538912d0). ## [2026-09-22] feat: teach and cache the stack Commit [b98565f](https://github.com/joelhooks/rat-stack/commit/b98565f6dcc60607746fb404cb9d8170b9a2132d). ## [2026-09-21] mischief: search, read, execute, the skills catalogue, and agent discovery Commit [ff17799](https://github.com/joelhooks/rat-stack/commit/ff17799dd6e25532d4baa0a4089567df74d1f90c). ## [2026-09-21] mischief: local-only Effect Worker prototype for ratstack.sh Commit [9417a99](https://github.com/joelhooks/rat-stack/commit/9417a990d494cd3e9fa63731d2e3b9c23ec218ad). ## [2026-09-21] brand and harvest: the Rat Stack mark, OG image step, agent-ready checks closed Commit [7464743](https://github.com/joelhooks/rat-stack/commit/7464743e12c7e1fcadab8497d1f95bbb2ceabec4). ## [2026-09-20] chore: dependency sweep; lint joins the turbo gate Commit [03fde9b](https://github.com/joelhooks/rat-stack/commit/03fde9bd017824c87c0570355bec2ddbd1e26ade). ## [2026-09-20] chore: @xstate/effect from the npm registry, tarball retired Commit [d4354c4](https://github.com/joelhooks/rat-stack/commit/d4354c4516749e5ef295a5abc80068c1f2ae2360). ## [2026-09-18] docs: template acceptance, rat-stack's own AGENTS.md answers, keep-or-cut Commit [da4d5f6](https://github.com/joelhooks/rat-stack/commit/da4d5f6770522c354a8eebfd8bbd46d53d816d6d). ## [2026-09-18] feat(capability): code mode, the fourth projection Commit [e90e35d](https://github.com/joelhooks/rat-stack/commit/e90e35da7c33ae774959dd69948a0d68a48fe832). ## [2026-09-18] feat: inspectFile as one capability on four commands Commit [b089306](https://github.com/joelhooks/rat-stack/commit/b08930683c8ef253ad84a0c39c0ef8086260b55c). ## [2026-09-18] docs(brain): one Schema, many surfaces (CLI, REST/OpenAPI, MCP, code mode) Commit [94f656a](https://github.com/joelhooks/rat-stack/commit/94f656a3e5b870665aff5994c508ebb7efd94f9b). ## [2026-09-18] chore: rename joel-stack to rat-stack Commit [cef2b78](https://github.com/joelhooks/rat-stack/commit/cef2b78999e3ed93cc397d0da191873779bc1a56). ## [2026-09-18] fix(ci): exclude the vendored @xstate/effect tarball from pnpm's release-age check Commit [6c5dc61](https://github.com/joelhooks/rat-stack/commit/6c5dc6145b85e9a3abad16cdf9778fec021d9ca7). ## [2026-09-18] docs(brain): record the second Effect 4 slice and its gotchas Commit [29964aa](https://github.com/joelhooks/rat-stack/commit/29964aa0d436c18635efe095d81c434e4fc72583). ## [2026-09-18] feat: close the Effect 4 reference gaps (language service, service shape, effect vitest, mirrors) Commit [de03059](https://github.com/joelhooks/rat-stack/commit/de030598b22620cd452ab6ff393cff342bcf856b). ## [2026-09-18] docs(brain): link filed xstate issue #5725 Commit [862db3b](https://github.com/joelhooks/rat-stack/commit/862db3b70736460f451219ffd0930fcb3b38385e). ## [2026-09-18] docs(brain): record prepared @xstate/effect upstream contribution Commit [25eb0c9](https://github.com/joelhooks/rat-stack/commit/25eb0c9099f5acce2aa5504ec4df7619fa627e8d). ## [2026-09-18] docs(brain): Effect 4 reference project study and @xstate/effect findings Commit [6a6178e](https://github.com/joelhooks/rat-stack/commit/6a6178e9d7e2612a2a786a5507262c5c6b10c4cd). ## [2026-09-18] feat(cli): run stats through an @xstate/effect machine Commit [92f60e0](https://github.com/joelhooks/rat-stack/commit/92f60e0c7ec069a0dc9cbcdfabe2ee84b8b1ac98). ## [2026-09-17] chore: rename ts-cli-template to joel-stack Commit [e4d02e6](https://github.com/joelhooks/rat-stack/commit/e4d02e6195ab9e3ceaa79a975b5dcf742e933830). ## [2026-09-17] feat(infra): bake Alchemy in as apps/infra, one Effect Stack per project Commit [6c12298](https://github.com/joelhooks/rat-stack/commit/6c1229835647808707d7d397034f11f04d024024). ## [2026-09-17] chore(deps): move XState to 6.0.0-alpha.58 Commit [218386e](https://github.com/joelhooks/rat-stack/commit/218386e71f0707db3e08fa54204c9bc3687d5e6e). ## [2026-09-17] Merge origin/main (varlock) into the stack bump Commit [aab2bce](https://github.com/joelhooks/rat-stack/commit/aab2bced16ce7e6f2a3d27e6ee6b3bae7714071b). ## [2026-09-17] chore(deps): bump the pinned stack: Effect rc.115, Vitest 5, Oxlint 1.83, XState 5.33.2 Commit [ddeb33a](https://github.com/joelhooks/rat-stack/commit/ddeb33a7a024053aa64d91cc7cc8ee4862bcc0ab). ## [2026-09-17] Add varlock: checked-in .env.schema, env:check script, varlock load in pnpm check Commit [bc2baaa](https://github.com/joelhooks/rat-stack/commit/bc2baaa8f90dbdc7238138a118268b31333d3461). ## [2026-08-29] monorepo rework + Effect 4.0.0-rc.112 + vendored alchemy Commit [14a08e5](https://github.com/joelhooks/rat-stack/commit/14a08e58fb07824ad0b2be98991c0fdd5f32b78f). ## [2026-07-22] chore: update Effect v4 to beta.99 Commit [3c3c529](https://github.com/joelhooks/rat-stack/commit/3c3c52928658e6f91871a99376a33a17e63876d1). ## [2026-07-16] Live .pi surface: project.ts extension, APPEND_SYSTEM.md, typed pi API dep Commit [a6c6dc3](https://github.com/joelhooks/rat-stack/commit/a6c6dc34bb4da71d43000a13af556b6426c7e2fb). ## [2026-07-16] Add full agentic surface Commit [f12746c](https://github.com/joelhooks/rat-stack/commit/f12746c1f466a4c040eb042bf1f68f14a871b7f5). ## [2026-07-16] Prototype strict Effect v4 CLI template Commit [584c338](https://github.com/joelhooks/rat-stack/commit/584c338cd8bfe7014a1aba06ef5cc8115ee9f914).