alkstore/tasks/normalize-tokio-dev-deps.md

id, name, status, depends_on, scope, risk, impact, level, tags

id	name	status	depends_on	scope	risk	impact	level	tags
normalize-tokio-dev-deps	Normalize the engines' dev-dep tokio feature sets (review 004 item 16)	completed		single	trivial	isolated	implementation	review-004-fixes hygiene metadata

Description

The cosmetic metadata asymmetry from docs/reviews/004-pre-release-general-review.md §"Findings recorded, not fixed" item 16: the three engines' dev-dep tokio features disagree — sqlite rt-multi-thread+macros+time, pg test-util, mem rt+macros. Harmless (the contract suite carries the test runtime) but an easy-to-trip asymmetry when copying test code between engines.

Normalize to one uniform dev-dep feature set across the three engines. Pick the union that keeps every engine's own tests green (likely rt-multi-thread + macros + time + test-util — verify per engine; feature unification means the workspace build is unaffected either way). Dev-deps only: no published-surface change, no runtime-dep change.

Acceptance Criteria

• The three engines' [dev-dependencies] tokio feature sets are identical
• Each engine's own test target green (cargo test -p per engine; the pg lib target's server-less SKIP posture is fine)
• Workspace gates green (build, clippy -D warnings, fmt)

References

• docs/reviews/004-pre-release-general-review.md §"Findings recorded, not fixed" item 16 (the finding)
• alkstore-sqlite/Cargo.toml:28, alkstore-postgres/Cargo.toml:22, alkstore-mem/Cargo.toml:19 (the three differing sets)

Notes

The union picked exactly matches the task's expectation: rt-multi-thread + macros + time + test-util — the pg engine's dev-dep test-util coverage is preserved, no engine's tests needed anything beyond the union, and no code change was required anywhere.

Summary

Normalized all three engines' [dev-dependencies] tokio feature sets to ["rt-multi-thread", "macros", "time", "test-util"] (previously: sqlite rt-multi-thread+macros+time, pg test-util, mem rt+macros) — dev-dep metadata only, no published-surface or runtime-dep change.

Verified (2026-10-11): workspace cargo build, cargo clippy --all-targets -- -D warnings, cargo fmt --check all clean; cargo test -p green for alkstore-mem (102 unit + 26 ct), alkstore-sqlite (203 unit + 26 ct + 1 doc), alkstore-postgres (135 unit + 26 ct + 9 integration, full target incl. the server-less SKIP posture).