# Changelog

New features, architectural changes and improvements to the template.

Release notes are curated from repository history. Dates reflect integration into the main branch; grouped entries are not semantic-version tags. Each entry links to its implementation and current developer guide.


## Agent skills from upstream and the /pr template

2026-10-19

Matt Pocock's skills and pstack come from their upstream sources through the official installer, /pr joins the skills, and pull requests open with its Summary, Evidence and Merge Danger sections.

Matt Pocock's skills and pstack are installed again from their sources with the official `skills` installer, so `skills-lock.json` matches what upstream ships. `pr` is new from Matt Pocock. `design-an-interface` and `resolving-merge-conflicts` are gone because upstream deleted them, and `writing-great-skills` is gone because upstream renamed it to `writing-for-agents`, which the repo already had. `domain-modeling` keeps this repo's ADR header rules and was not reinstalled.

pstack adds `correct`, `in-your-own-words`, `ketchup`, `principle-attack-the-premise`, `principle-explain-the-number` and `principle-test-behavior-not-implementation`, and seven pstack skills follow upstream edits. pstack's `teach` and `tdd` stay out, so the names keep pointing at Matt Pocock's skills.

A new pull request opens with the `/pr` sections: Summary (a diff sketch, file tree or pseudocode, no Mermaid), Evidence (before and after) and Merge Danger (one-way or two-way door, blast radius). The checks list below them is unchanged. The template says that a merge to `main` deploys to production and that migrations, RLS changes, secret or env changes and feature removals are one-way doors. Skills that name `GLOSSARY.md` read this repo's `CONTEXT.md`.

- [Review checklist](/docs/development/review-checklist)
- [Pull request template](https://github.com/CarlosZiegler/template-cloudflare/blob/main/.github/PULL_REQUEST_TEMPLATE.md)
- [Domain docs for agents](https://github.com/CarlosZiegler/template-cloudflare/blob/main/docs/agents/domain.md)

Sources: [Matt Pocock skills](https://github.com/CarlosZiegler/template-cloudflare/commit/680e461), [pstack skills](https://github.com/CarlosZiegler/template-cloudflare/commit/4d02247).


## Ponytail from the official plugin

2026-10-19

The default working style is the official ponytail plugin, enabled by the project settings, and new apps get a step for their own verification skill.

Ponytail is no longer a copy of six skills under `.agents/skills`. The project's `.claude/settings.json` declares the upstream `ponytail` marketplace with auto-update and enables `ponytail@ponytail`, so Claude Code loads the always-on plugin once a contributor trusts the folder and follows upstream releases. `AGENTS.md` lists the upstream install commands for Codex, Cursor and other agents, and says when to switch to `/poteto-mode` instead.

The template ships no verification skill. The README's "Using this template" steps now tell a new app to run `/create-verification-skill` once its first features exist, then `/maintain-verification-skill` on the team's cadence, and where the generated `verify-<app>` skill belongs.

- [Agent instructions](https://github.com/CarlosZiegler/template-cloudflare/blob/main/AGENTS.md)
- [Using this template](https://github.com/CarlosZiegler/template-cloudflare/blob/main/README.md#using-this-template)

Sources: [official plugin](https://github.com/CarlosZiegler/template-cloudflare/commit/bad3133), [verification skill step](https://github.com/CarlosZiegler/template-cloudflare/commit/9c061f0).


## One folder per backend feature, tagged errors and written rules

2026-10-17

packages/api moves to features and platform folders with fixed file names, two pilot features run one Effect program per procedure, and every rule now names what enforces it.

**Breaking for imports of `@template-cloudflare/api`.** Server code moved from `routers/`, `lib/` and topic folders to `packages/api/src/features/<feature>/<feature>.<role>.ts`, with shared building blocks in `packages/api/src/platform/`. Public subpaths now follow `./<feature>/<role>`, for example `./todo/contract`, `./app-router`, `./uploads/service` and `./assistant/http`. If your fork imports an earlier subpath, use the table in the [api package reference](/docs/packages/api#renamed-subpaths). The four subpaths the mobile app imports (`./routers/{todo,integrations,billing,notifications}.schema`) remain as aliases, so the native app builds unchanged.

- **Feature shape.** Every feature has the same role files: a leaf contract, procedures, a service, errors, and optional jobs and HTTP edges. There is no barrel and no repository layer; row-level security already isolates Organizations. The `@template-cloudflare/api/mcp/*` subpaths are server-only in the client boundary. New tests and lint rules hold the shape: leaf modules import only leaves, features import each other through declared edges, there are no import cycles, type imports are explicit, and configuration is read through `packages/env`. [Backend shape](/docs/architecture/backend-shape), [ADR-0011](/docs/adr/0011-backend-feature-shape).
- **Tagged domain errors and Effect in procedures.** In `todo` and `documents`, services fail with tagged errors, and one mapper per feature turns them into the same `APP_ERRORS` codes and messages clients saw before. Each procedure runs its service once through `runProcedure`. A client abort is honoured only before the program starts; once it runs, a client that goes away no longer rolls back the write, so the write and its Audit Event commit and the response goes unread. Other features keep their services until they are migrated. [ADR-0010](/docs/adr/0010-procedures-run-one-effect-program), [error handling](/docs/development/backend-conventions#domain-failures-are-tagged-errors-mapped-once).
- **Request ID and quieter logs.** Every RPC response carries `x-request-id`, including the 500 when building the request context fails: Cloudflare's `cf-ray` when it is well formed, otherwise a UUID. The MCP context derives its own request ID for the logs of its document tools. The same ID is `context.requestId` on the server and is part of the error log, so a user can quote it. It correlates logs only: outside Cloudflare a client can supply the `cf-ray`, so nothing decides by it. Expected 4xx failures are logged at debug level instead of as errors. Runtime switches (`DB_TENANT_PIPELINE`, `TRUSTED_PROXY_HEADER`, `TRUSTED_PROXIES`, `TENANCY_PROBE`) are declared in the env schema. Their meaning is unchanged, but an invalid value is now reported instead of silently replaced by a default; check these variables in your Worker and Node deployments.
- **Input validation answers HTTP 400.** An invalid input now returns HTTP 400 with the same `INPUT_VALIDATION` code, message and field errors as before; it used to come back as HTTP 500, because oRPC's default status map did not know the code. The RPC and OpenAPI handlers use `errorStatusMap` from `@template-cloudflare/errors/server`, and `APP_ERRORS.INPUT_VALIDATION.status` is 400 instead of 422, which also changes the status in the generated OpenAPI document. The assistant's HTTP route maps statuses with the same shared map, so `INPUT_VALIDATION` is 400 there as well. Clients that branch on `code` see no change. [Error handling](https://github.com/CarlosZiegler/template-cloudflare/blob/main/docs/error-handling.md).
- **Org roles, ready when needed.** `orgProcedure` reads the Member's Org role with its membership check, and `requireOrgRole(...)` restricts a procedure to some roles, failing closed. Roles are not hierarchical (list every role that may act), and using it outside `orgProcedure` is a type error. No procedure applies it yet. [Backend conventions](/docs/development/backend-conventions#org-roles-are-checked-only-where-a-product-rule-needs-them).
- **Written rules with their checks.** [Backend conventions](/docs/development/backend-conventions) state each rule with its reason, example, anti-pattern and enforcement. The [enforcement matrix](/docs/development/enforcement) shows which rules a check holds and which rely on review. A [review checklist](/docs/development/review-checklist), a pull request template and a root `CODING_STANDARDS.md` index the same rules.
- **Runbooks.** [Runbooks](/docs/development/runbooks) cover a database restore or host move, the pipelining kill switch, Hyperdrive caching, the RLS proof on a preview, and the emergency shutdown. The emergency-shutdown workflow does not block a custom domain; the runbook gives the extra step.
- **Decisions show their status.** Every ADR starts with its status and acceptance date, and the [decision index](/docs/adr) lists them. The [pagination](/docs/features/api#pagination) and [testing](/docs/development/testing#what-to-test) rules are written down.
- **A skill for new features.** The `domain-feature` skill walks from a glossary term to an RLS table, contract, tagged errors, service, procedures, isolation tests and docs.

Measurements ([report](https://github.com/CarlosZiegler/template-cloudflare/blob/main/docs/measurements/2026-10-17-backend-structure.md)): the server code grows by 6.9 KiB gzip, within the 10 KiB budget for the Effect pilots, and the client carries no Effect. The happy-path p50 of the pilot procedures is within the noise of an A/A run; the `todo.byId` error path costs +0.040 ms. Separately, the Worker as a whole grows by 70.2 KiB gzip, of which 63.4 KiB are the documentation pages, ADRs and changelog the site renders on the server: that is content and has nothing to do with Effect, and whether it counts against the Worker budget is still open.

Sources: [platform move](https://github.com/CarlosZiegler/template-cloudflare/commit/0aa202e), [feature folders, first of 18 moves](https://github.com/CarlosZiegler/template-cloudflare/commit/3d1913f), [graph tests](https://github.com/CarlosZiegler/template-cloudflare/commit/2226f26), [direction rules](https://github.com/CarlosZiegler/template-cloudflare/commit/05836ac), [runProcedure](https://github.com/CarlosZiegler/template-cloudflare/commit/91a2d11), [todo pilot](https://github.com/CarlosZiegler/template-cloudflare/commit/6c77fb1), [documents pilot](https://github.com/CarlosZiegler/template-cloudflare/commit/49a4de0), [request ID](https://github.com/CarlosZiegler/template-cloudflare/commit/fa1cbbb), [error log levels](https://github.com/CarlosZiegler/template-cloudflare/commit/ec63950), [runtime switches](https://github.com/CarlosZiegler/template-cloudflare/commit/0df1feb), [trusted proxy](https://github.com/CarlosZiegler/template-cloudflare/commit/47a3700), [requireOrgRole](https://github.com/CarlosZiegler/template-cloudflare/commit/3e51803), [400 for input validation](https://github.com/CarlosZiegler/template-cloudflare/commit/146d310), [measurement](https://github.com/CarlosZiegler/template-cloudflare/commit/ec94469).


## Earlier updates

- 2026-10-17: [One folder per mobile feature, and the API aliases are gone](/docs/changelog/2026-10-17-mobile-structure)
- 2026-10-17: [The web app is organized by feature, like the backend](/docs/changelog/2026-10-17-web-structure)
- 2026-10-16: [Auth and tenant security fixes](/docs/changelog/2026-10-16-auth-and-security-fixes)
- 2026-10-16: [Database, Worker and web performance](/docs/changelog/2026-10-16-performance-and-placement)
- 2026-10-16: [Row-level security per Organization](/docs/changelog/2026-10-16-row-level-security)
- 2026-10-15: [AI assistant and one tool catalog](/docs/changelog/2026-10-15-assistant-and-agent-tools)
- 2026-10-15: [Dependency round, i18next fix and ReUI controls](/docs/changelog/2026-10-15-dependency-round-and-reui)
- 2026-10-15: [Developer documentation and changelog](/docs/changelog/2026-10-15-developer-docs-and-changelog)
- 2026-10-15: [Documents and large uploads](/docs/changelog/2026-10-15-documents-and-large-uploads)
- 2026-10-15: [Landing page redesign](/docs/changelog/2026-10-15-landing-redesign)
- 2026-10-15: [Landing sections and project skills](/docs/changelog/2026-10-15-landing-sections-and-project-skills)
- 2026-10-14: [Trace and code block primitives](/docs/changelog/2026-10-14-trace-and-code-blocks)
- 2026-10-13: [TanStack Start 1.0, OG images and durable imports](/docs/changelog/2026-10-13-start-og-and-imports)
- 2026-10-12: [Payments, native screens and a new landing page](/docs/changelog/2026-10-12-payments-and-native-experience)
- 2026-10-03: [Runtime and recovery hardening](/docs/changelog/2026-10-03-runtime-and-recovery)
- 2026-09-25: [Authentication foundations and performance](/docs/changelog/2026-09-25-auth-and-performance)
- 2026-09-24: [Platform dependency alignment](/docs/changelog/2026-09-24-platform-dependencies)
- 2026-09-03: [oRPC and Drizzle upgrades](/docs/changelog/2026-09-03-typed-api-upgrade)
- 2026-08-25: [Typed domain operations and a real dashboard](/docs/changelog/2026-08-25-typed-domain-and-dashboard)
- 2026-08-24: [Agent connections and native account security](/docs/changelog/2026-08-24-agent-connections-and-account-security)
- 2026-08-13: [Cloudflare email and shared UI](/docs/changelog/2026-08-13-email-and-ui)
- 2026-07-30: [An enforced client/server boundary](/docs/changelog/2026-07-30-client-boundary)
- 2026-07-24: [Native interface foundations](/docs/changelog/2026-07-24-native-foundation)
- 2026-07-13: [Administration and data workflows](/docs/changelog/2026-07-13-admin-and-data-workflows)
- 2026-06-10: [Setup, storage and localization](/docs/changelog/2026-06-10-setup-storage-and-i18n)