## Problem
The run-ops split mints NEW-store run ids as **27-char base62 KSUIDs**.
The supervisor writes the run id into the Kubernetes pod name
(`runner-<id>`), and pod names must be DNS-1123 labels (lowercase
`[a-z0-9-]`) — so uppercase base62 ids make k8s reject the pod (422) and
**those runs never launch** (they loop in `PENDING_EXECUTING` until the
heartbeat-stall handler nacks them, forever). `.toLowerCase()` can't fix
it: base62 has both `A`(10) and `a`(36) as distinct symbols, so folding
collides distinct ids and destroys sort order.
## Fix: change the encoding, not the structure
Mint a **26-char lowercase base32hex** run id:
```
run_<24-char base32hex core><region char><version char>
[ 6-byte ms timestamp ][ 9 CSPRNG bytes ]
```
- **base32hex** (RFC 4648 §7, alphabet `0-9a-v`): lowercase,
order-preserving, DNS-safe; 15 bytes → exactly 24 chars, no padding.
Hand-rolled encode/decode (no new dependency).
- **48-bit ms timestamp** in the leading bytes → plain string sort ==
creation order at millisecond resolution.
- **72 bits CSPRNG** entropy; PK unique constraint is the backstop (no
retry loop).
- **region / version** are raw positional chars (read via one `charAt`
before decoding/routing), version = `"1"`.
DNS-safe from birth and hyphen-free, so **firekeeper is unchanged** —
`runner-<id>-attempt-N` → strip `runner-`, cut at first hyphen still
recovers the exact id incl. region+version.
## Residency discriminator: length → version char
`classifyKind`/`classifyResidency` (`runOpsResidency.ts`) previously
distinguished NEW vs LEGACY by **id length**. That gets ambiguous with a
third format. It now discriminates on the **version char at a fixed
position** (`isRunOpsIdBody`: 26 chars, `[25] === "1"`, base32hex
alphabet) → NEW; everything else → LEGACY. Total, never throws. The
`Residency` (NEW/LEGACY) contract the routing store consumes is
unchanged; the `"ksuid"` `ResidencyKind` label is retained only because
it's the persisted `runOpsMintKsuid` feature-flag value.
## Scope / verification
- Generator + discriminator in `@trigger.dev/core` isomorphic; mint path
+ all id-shape call sites swept (~40 webapp files); changeset added
(`@trigger.dev/core` patch).
- Core unit tests (encode/decode round-trip + property, generator shape,
ms sort-order incl. intra-second, parse partitioned-vs-legacy,
firekeeper round-trip): **24 pass**. `@trigger.dev/core` builds; webapp
typechecks; format/lint clean.
## Open decisions (flagged, not silently chosen)
1. **Backward-compat**: existing 27-char base62 KSUID runs now classify
LEGACY. On test cloud these are the broken/looping runs that never
completed, so this is acceptable — but worth a conscious call before
prod. No transitional length-recognition added (keeps the discriminator
clean).
2. **Storage collation**: the sort guarantee is byte-order — if the
run-ops id column is `TEXT` with default locale collation it's silently
not honored. Confirm whether `COLLATE "C"` / `BYTEA` is needed on the
run-ops schema.
3. **Region sourcing** wiring — see `regionCharForRegion` /
`REGION_CODES`.
---
## ⚠️ Required migration — deploy in lockstep
This PR renames a persisted feature-flag key/value and an env var. These
are **not** changed by the code alone and must be migrated when this
deploys, or affected orgs silently fall back to `cuid` minting (no crash
— `defaultValue: "cuid"`):
1. **Env var** (terraform): `RUN_OPS_MINT_KSUID_ENABLED` →
`RUN_OPS_MINT_ENABLED` (carry the value over).
2. **DB** `organization.featureFlags`: migrate both the key and value
together:
- key `runOpsMintKsuid` → `runOpsMintKind`
- value `"ksuid"` → `"runOpsId"`
Until an org's flag row is migrated, its `runOpsMintKind` lookup misses
and it mints `cuid` (legacy) — so no NEW-store ids for that org until
the data lands.
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
## Summary
The **Run ID** and **Batch ID** filters on the runs list, batches list,
and logs view rejected valid IDs. The input showed an error and the
**Apply** button stayed disabled, so filtering by an affected run or
batch ID from the dashboard was impossible.
The filter validators hard-coded exact friendly-id character lengths.
Friendly IDs come in three generations that all still exist in the data
(`<prefix>_` plus a 21-char nanoid, a 25-char cuid, or a 27-char ksuid),
and the hard-coded lengths never covered all three at once.
## Fix
All the ID filter validators (run, batch, waitpoint, schedule) now share
one helper, `makeFriendlyIdValidator`
(`apps/webapp/app/utils/friendlyId.ts`), which validates by prefix plus
a base62 body of any known generator length (21 / 25 / 27). The cuid and
ksuid lengths are sourced from core so the helper tracks any future
change to those formats. Unit tests assert it accepts the output of the
real id generators and rejects malformed input.
Downstream was already unaffected: run/batch route params and
URL-applied filters use unconstrained validation, so only the manual
filter inputs needed the fix.
Daniel Sutton