Define short-lived Go build-tag rollback levers for Ward extraction work #1268

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opened 2026-07-14 10:08:13 +00:00 by coilyco-ops · 0 comments

coilyco-ops commented

2026-07-14 10:08:13 +00:00

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Decision

Go, from coilysiren/inbox#211 follow-up.

Use short-lived Go build tags as rollback levers during Ward extraction work. These are compile-time switches such as //go:build legacy_profile, not git tags or release tags.

Scope

Define the allowed transitional build tags and their owner/removal condition.
Initial candidates: legacy_cli, legacy_ops, and legacy_profile.
Use tags only to preserve a working adapter or fallback while a seam is being cut.
Document which CI jobs build the default path and which jobs, if any, prove the legacy path still compiles during the transition.
Add removal tickets or explicit acceptance criteria so the tags expire after the relevant extraction step lands.

Non-goals

Do not use build tags as permanent architecture.
Do not hide default behavior behind non-default tags.
Do not use git tags, release tags, or branch labels for this purpose.
Do not add the tags before there is an actual extraction change that needs a rollback lever.

Parent: coilysiren/inbox#211.
Related: coilyco-flight-deck/ward#1245, coilyco-flight-deck/ward#1246, coilyco-flight-deck/ward#1247, coilyco-flight-deck/ward#1265.

## Decision Go, from coilysiren/inbox#211 follow-up. Use short-lived Go build tags as rollback levers during Ward extraction work. These are compile-time switches such as `//go:build legacy_profile`, not git tags or release tags. ## Scope - Define the allowed transitional build tags and their owner/removal condition. - Initial candidates: `legacy_cli`, `legacy_ops`, and `legacy_profile`. - Use tags only to preserve a working adapter or fallback while a seam is being cut. - Document which CI jobs build the default path and which jobs, if any, prove the legacy path still compiles during the transition. - Add removal tickets or explicit acceptance criteria so the tags expire after the relevant extraction step lands. ## Non-goals - Do not use build tags as permanent architecture. - Do not hide default behavior behind non-default tags. - Do not use git tags, release tags, or branch labels for this purpose. - Do not add the tags before there is an actual extraction change that needs a rollback lever. Parent: coilysiren/inbox#211. Related: coilyco-flight-deck/ward#1245, coilyco-flight-deck/ward#1246, coilyco-flight-deck/ward#1247, coilyco-flight-deck/ward#1265.

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2026-07-14 10:08:13 +00:00