Email templates: show "Managed by code" and the source file in the library #489

Activity

1. Silthus

   added

   wayfinder:implement

   on Oct 16, 2026
2. Silthus

   added a parent issue on Oct 16, 2026

   • Map: send code-managed email templates with one PostHog call #461
3. Silthus

   marked this as blocked by 2 issues on Oct 16, 2026

   • Email templates: upload a template by key from code #487
   • Email templates: one send route that names the template in the body, with a content hash #488
4. Silthus

   marked this as blocking 2 issues on Oct 16, 2026

   • Email templates: read-only view of code-managed templates #492
   • Ship code-managed email templates as one reviewed draft PR #498
5. Silthus

   self-assigned this

   on Oct 16, 2026
6. Silthus commented on Oct 16, 2026

   

   Silthus

   on Oct 16, 2026

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   Runtime: T3 child task
   Task: node:delegated-task:command%3Amcp%3A955e36b3-3986-469c-b816-09cf656780af%3Adelegate-task%3Awf-email-impl-489-1
   Cast: Opus 5.5, high. Cap 180 minutes.
7. Silthus commented on Oct 17, 2026

   

   Silthus

   on Oct 17, 2026

   OwnerAuthor

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   Resolution

   Landed: 0062c7672a8 on spec/code-managed-templates (fast-forward e5234aa0bf9..0062c7672a8, one commit).
   Branch: spec/code-managed-templates/489. No PR: the ship ticket #498 opens it.

   What landed

   • "Managed by code" tag (CodeManagedTag.tsx): a LemonTag with IconCode, data-attr="message-template-managed-by-code", on the library card and next to the name in the template page header. It shows only when managed_by is code. Tooltip: "This template is uploaded from a file in a repository. To change it, edit the file and upload it again."
   • Source line (CodeManagedSource.tsx, data-attr="message-template-code-source") under the title: "<path> in <repository>, last uploaded from <ref>". Each part links on GitHub, GitLab and Bitbucket. Unknown hosts are plain text. A commit SHA is shortened to 7 characters, and a branch links to the branch.
   • Key on any keyed template, next to the source line, with a copy button (data-attr="message-template-key").
   • Notice on code-managed templates, worded for what Email templates: refuse edits to code-managed templates on the server #491 allows: "This template is managed by code, so changes made here can't be saved. To change it, edit the file and upload it again. To edit it here, duplicate it." Its Duplicate action (message-template-code-managed-duplicate) creates an editable copy without key or ownership.
   • Server refusal: a save that the server refuses with 403 immutable shows the server's detail in the toast, not "Failed to save template".
   • API tab: the example uses POST /api/projects/{id}/messaging/send/email/ with "template": { "key": … } on a keyed template, and "template": { "id": … } otherwise, plus one line that explains the reference.
   • Logic: messageTemplateLogic gains isCodeManaged and templateSource, derived from the saved template. The pure part sits in codeManagedTemplate.ts.
   • Shared git helper: GitMetadataParser gains getFileLink, getRefLink, isCommitSha and accepts scheme-less remotes such as github.com/acme/app (the shape the upload stores). Ported from the fork's feat/workflows-code-managed-read-only (c5e2485c1d, ebdfa6b6be) and renamed to template vocabulary. Existing callers are unchanged.
   • MessageTemplate type gains key, managed_by and source_* from the generated MessageTemplateApi.

   Proof

   Red (red.log), new tests before the change: 12 failed, 35 passed.

   • GitMetadataParser.getFileLink is not a function
   • Count not find value with key "isCodeManaged" in logic …
   • the immutable case got "Failed to save template. Please try again." instead of the server's detail.

   Green: gitMetadataParser.spec.ts plus every test under products/workflows/frontend/TemplateLibrary/: 6 suites, 71 passed, nothing skipped.

   Seam	Cases
   messageTemplateLogic (kea, API mocked)	made in PostHog, keyed but gui, GitHub commit, branch, unknown host, no source → isCodeManaged and templateSource
   messageTemplateLogic save failure	new 403 immutable row in the existing parameterized test
   GitMetadataParser.getFileLink	scheme-less GitHub, GitLab SSH, Bitbucket HTTPS, unknown host, encoded ref and path

   Local gate on the landed tree:

   • tsgo --noEmit --checkers 1 in frontend/ through fleet heavy: exit 0, no errors.
   • hogli ci:preflight --strict --against origin/spec/code-managed-templates: 0 failures. Warnings only: complexity on MessageTemplate (33, already over before this change), MessageTemplateCard (12) and templateSource (11).
   • The pre-push hook (hogli ci:preflight --strict) passed on the push: 0 failures.
   • No backend change, so no build:openapi or mypy run was needed.

   Screenshots: Storybook from this worktree rendering the real App scene against mocked data (MockHog project, example.com repositories, no customer data). Narrow is a 560px window, about the 520px scene of a 1280px window with the side panel open. Wide is 1440px.

   	Before	After
   Library (wide)	before	after · narrow
   Code-managed template	wide · narrow	wide · narrow
   API tab	wide · narrow	wide · narrow
   Unknown host (plain text)		wide · narrow
   Template made in PostHog (unchanged)		wide · narrow

   Calls made

   • Notice wording follows Email templates: refuse edits to code-managed templates on the server #491, not the spec's first-slice text. The spec's "The next upload from code overwrites changes made here" assumed no lock. Email templates: refuse edits to code-managed templates on the server #491 refuses every edit, so the notice says changes can't be saved and offers the two real paths: edit the file, or duplicate. The editor itself stays as it is, as the ticket says. The read-only preview and release action belong to Email templates: read-only view of code-managed templates #492.
   • Screenshots come from Storybook, not a cURL upload on the local stack. The running dev stack on this devbox serves the main checkout, not this worktree. Storybook renders this worktree's App scene with the API mocked at the HTTP boundary, using the response shape Email templates: upload a template by key from code #487 and Email templates: refuse edits to code-managed templates on the server #491 recorded. The scene story is scratch and stays out of the commit.
   • "Table row": MessageTemplatesTable renders cards, not rows, so the card carries the tag. No other list of email templates exists.
   • Stories: one CodeManagedSource story file with four states (commit on GitHub, long path on a GitLab branch, unknown host, no recorded source). Each renders the tag next to the name, so the tag needs no separate file.
   • Key and source share one wrapping row under the description, so the page gains at most one line, and both wrap at narrow widths.
   • The key in the API example is inserted as is. Keys match ^[a-zA-Z0-9_-]+$, so it can't break the JSON.
   • Parser: scheme-less remotes now parse as HTTPS. No existing caller passes one, and the existing spec cases still pass.
   • I first pushed the screenshots branch with --no-verify. I deleted it and pushed it again with the pre-push hook running (0 failures). The content is the same.
   • No review ran in this ticket. The ship ticket Ship code-managed email templates as one reviewed draft PR #498 owns review.

   Follow-ups

   • Delete from the library card on a code-managed template now gets 403 immutable from the server (Email templates: refuse edits to code-managed templates on the server #491), and the card menu still offers it. Email templates: read-only view of code-managed templates #492 should hide it or give it a disabled reason.
   • Save on a code-managed template still looks enabled until Email templates: read-only view of code-managed templates #492 replaces the editor. A save now shows the server's reason instead of a generic error.
   • templateSource sits just over the complexity warning (11). It reads fine, but it could split if the warning ever blocks.
8. Silthus

   closed this as completedon Oct 17, 2026