Aliases are not implemented. Canonical ids are semantic slugs only. This file is a one-time migration reference from the 2026-10-22 rename; CLIs do not accept the left-hand numeric codes.

Removed ids (jitter 2026-10-22) have no slug and must not be reused: CX001, CX003, CX004, BE002, KT004, OC001, OC004, PP004.

arktsperf

Old	Slug
`AT001`	`at-alloc-hot`
`AT002`	`at-object-delete`
`AT003`	`at-console-hot`
`AT004`	`at-includes-hot`
`AT005`	`at-json-hot`

cperf

Old	Slug
`CP001`	`cp-alloc-hot`
`CP002`	`cp-realloc-grow-one`
`CP003`	`cp-printf-hot`
`CP004`	`cp-strlen-in-cond`
`CP005`	`cp-strcat-hot`

cppperf

Old	Slug
`CX002`	`cx-string-append-unreserved`

Removed (tombstone only):

CX001
CX003
CX004

csharpperf

Old	Slug
`CS001`	`cs-list-add-no-capacity`
`CS002`	`cs-string-plus-hot`
`CS003`	`cs-console-hot`
`CS004`	`cs-regex-hot`

dartperf

Old	Slug
`DT001`	`dt-list-add-empty`
`DT002`	`dt-string-plus-hot`
`DT003`	`dt-print-hot`
`DT004`	`dt-growable-add-empty`

goperf

Old	Slug
`GP001`	`gp-make-hot`
`GP002`	`gp-string-plus-hot`
`GP003`	`gp-fmt-hot`
`GP004`	`gp-append-nil-slice`
`GP005`	`gp-defer-hot`

jsperf

Old	Slug
`JP001`	`jp-alloc-hot`
`JP002`	`jp-console-hot`
`JP003`	`jp-delete-shape`
`JP004`	`jp-delete-array-hole`
`JP005`	`jp-string-plus-in-loop`
`JP006`	`jp-map-filter-chain`

jvmperf

Old	Slug
`JP001`	`jp-boxed-primitive-collection`
`JP002`	`jp-string-concat-hot`
`JP003`	`jp-regex-hot`
`JP004`	`jp-format-hot`
`JP005`	`jp-unpresized-collection`
`JP006`	`jp-boxed-stream`
`JP007`	`jp-exception-control-flow`
`JP008`	`jp-legacy-synchronized-type`
`JP009`	`jp-many-boolean-fields`
`JP010`	`jp-enum-key-hash-collection`
`JP011`	`jp-collection-chain`
`JP012`	`jp-value-class-boxing`
`JP013`	`jp-lambda-to-non-inline-hot`
`JP014`	`jp-lazy-default-mode`
`JP015`	`jp-data-copy-hot`
`JP016`	`jp-android-sparse-array`
`JP017`	`jp-log-hot`
`JP018`	`jp-sleep-polling`
`JP019`	`jp-finalize`
`JP020`	`jp-expensive-alloc-hot`
`JP021`	`jp-hot-heavy-alloc`
`JP022`	`jp-hot-format-log`
`JP023`	`jp-hot-system-call`
`JP024`	`jp-bitmap-decode-no-reuse`
`JP025`	`jp-hot-post-lambda`
`JP026`	`jp-ui-text-append`
`JP027`	`jp-baos-tobytearray-copy`
`JP028`	`jp-hot-payload-copy`
`JP030`	`jp-client-factory-recreate`
`JP031`	`jp-string-intern-hot`
`JP032`	`jp-non-static-field-updater`

luaperf

Old	Slug
`LU001`	`lu-table-insert-hot`
`LU002`	`lu-string-concat-hot`
`LU003`	`lu-print-hot`

nimperf

Old	Slug
`NM001`	`nm-seq-add-hot`
`NM002`	`nm-string-amp-in-loop` (removed, tombstone)
`NM003`	`nm-echo-hot`
`NM004`	`nm-seq-no-capacity`

phpperf

Old	Slug
`PH001`	`ph-string-dot-hot`
`PH002`	`ph-array-merge-rebind`
`PH003`	`ph-echo-hot`

rubyperf

Old	Slug
`RB001`	`rb-string-plus-hot`
`RB002`	`rb-array-plus-rebind`
`RB003`	`rb-puts-hot`
`RB004`	`rb-hash-merge-in-loop` (removed, tombstone)

rustperf

Old	Slug
`RS001`	`rs-alloc-hot`
`RS002`	`rs-string-plus-in-loop`
`RS003`	`rs-println-hot`
`RS004`	`rs-format-rebind-hot`
`RS005`	`rs-vec-no-capacity`
`RS006`	`rs-collect-vec-hot`

swiftperf

Old	Slug
`SP001`	`sp-force-unwrap-in-loop`
`SP002`	`sp-string-plus-in-loop`
`SP003`	`sp-print-hot`
`SP004`	`sp-array-no-reserve`
`SP005`	`sp-map-joined-chain`

zperf

Old	Slug
`ZP001`	`zp-alloc-hot`
`ZP002`	`zp-append-without-reserve`
`ZP003`	`zp-page-allocator-small`
`ZP004`	`zp-debug-allocator`
`ZP005`	`zp-large-struct-by-value`
`ZP006`	`zp-print-hot`
`ZP007`	`zp-unbuffered-io`
`ZP008`	`zp-missing-free`
`ZP009`	`zp-extern-struct-padding`
`ZP010`	`zp-broad-runtime-safety`
`ZP011`	`zp-packable-bools`
`ZP012`	`zp-usize-index-field`
`ZP013`	`zp-aos-single-field`
`ZP014`	`zp-catch-unreachable-alloc`
`ZP015`	`zp-oversized-enum-tag`
`ZP016`	`zp-optional-scalar-field`
`ZP017`	`zp-bool-array`
`ZP018`	`zp-static-string-map`
`ZP019`	`zp-runtime-div-hot`
`ZP020`	`zp-queue-ordered-remove`
`ZP021`	`zp-shift-on-read`
`ZP022`	`zp-per-packet-alloc`
`ZP023`	`zp-invariant-float-div`
`ZP024`	`zp-map-put-without-ensure`
`ZP025`	`zp-catch-unreachable-io`
`ZP026`	`zp-arena-reset-free-all`
`ZP027`	`zp-create-destroy-hot`
`ZP028`	`zp-fixed-size-alloc-hot`

2026-10-27 scope rename (`-in-loop` → `-hot`)

Default matching is now --scope all (report outside loops too). Slugs that contained in-loop were renamed so names do not imply loop-only scope. Old slugs are tombstoned under each kit's evidence/_removed/*.REMOVED.md and must never be reused. Active ids are listed in each kit's docs/rule-ids.md. Opt in to --scope loop for the former in-loop-only match where the kit supports it.

The numeric → slug rows above remain the historical 2026-10-22 mapping (many targets were later renamed again on 2026-10-27).

Old	Slug
`BE001`	`be-list-concat-reduce`
`BE003`	`be-io-puts-hot`
`BE004`	`be-map-merge-hot`
`BE005`	`be-enum-map-filter-chain`

Old	Slug
`KT001`	`kt-list-add-hot`
`KT002`	`kt-string-plus-hot`
`KT003`	`kt-println-hot`

Old	Slug
`OC002`	`oc-nsstring-append-hot`
`OC003`	`oc-nslog-hot`

Old	Slug
`PP001`	`pp-str-plus-hot`
`PP002`	`pp-list-plus-rebind`
`PP003`	`pp-print-hot`

Rule ID map (historical — numeric → slug)

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dartperf

goperf

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nimperf

objcperf

phpperf

pyperf

rubyperf

rustperf

swiftperf

zperf

2026-10-27 scope rename (`-in-loop` → `-hot`)

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arktsperf

beamperf

cperf

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objcperf

phpperf

pyperf

rubyperf

rustperf

swiftperf

zperf

2026-10-27 scope rename (`-in-loop` → `-hot`)