docs: TRAC-507 - add Handlebars v3 to v4 migration agent skill#1383
Merged
jairo-bc merged 1 commit intoJun 18, 2026
Merged
Conversation
Add a publishable Agent Skill (skills/handlebars-v4-migration) guiding migration of a Stencil theme from Handlebars v3 to v4: config.json template_engine flag, fixing ../ context depth in conditional helpers, regression testing, and changelog. Installable via the skills CLI (npx skills add bigcommerce/stencil-cli) and surfaced on skills.sh. Refs TRAC-507
jairo-bc
force-pushed
the
publish/handlebars-v4-migration-skill
branch
from
8486546 to
941882b
Compare
bc-yevhenii-buliuk
approved these changes
Jun 18, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What
Adds a publishable Agent Skill at
skills/handlebars-v4-migration/SKILL.mdthat guides migrating a BigCommerce Stencil theme from Handlebars v3 to v4:"template_engine": "handlebars_v4"inconfig.json..//@../context depth inside conditional helpers (#if,#unless,#or,#and,#compare,#inArray,#any) that no longer create a context frame in v4, with an optional block-params refactorWhy
This is the agent-skill deliverable for the Handlebars v3 deprecation effort. It moves the guide out of the internal plugin marketplace into a public home so any theme developer can use it.
How it's distributed
Placing it under a top-level
skills/directory makes it installable via the openskillsCLI:which copies the skill into the consumer's agent config (e.g.
.claude/skills/). It surfaces on the skills.sh directory automatically via install telemetry — no separate submission step.