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Rate limiter rewrite (5 of 5)

All issuesOpenSearch issues

Issue	Status	Priority	Runs	Updated
LRK-412Token bucket store on Redis with per-key TTL	Done	High	Idle	02:14
LRK-413Middleware: 429 with Retry-After and RateLimit-* headers	In Progress	High	Running	now
LRK-414Per-tenant overrides read from the plans table	In Progress	Medium	Running	now
LRK-415Load test: 12k rps burst, p99 under 40 ms	To Do	Medium	Blocked by 413	01:52
LRK-416Docs: rate limits page and SDK retry examples	To Do	Low	Idle	01:52

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# api-platformRate limits, gateway, public API

Dev Malhotra9:02 AM

Gateway p99 back to normal after the 08:00 spike.

Priya Raghunathan9:14 AM

Rate limiter is still the old in-memory one...

1 reply Last reply 9:16 AM

Message #api-platform

Thread# api-platform✕

Priya Raghunathan 9:14 AM

Rate limiter is still the old in-memory one, so it resets on every deploy and customers on the Scale plan keep hitting 429s at 08:00 UTC. @ForgeCode rewrite it on Redis, keep the public headers, per-tenant overrides from the plans table, and load test it before you open a PR.

👀 2✅ 1

1 reply

ForgeCode APP 9:16 AM

On it. Opened mission LRK-410 on larkspur-cloud-1 with 5 issues. I will report back in this thread when a PR is ready.

Reply...

Rate limiter rewrite for the public API (5 of 5)

All issuesOpenSearch issues

Issue	Status	Priority	Runs	Updated
LRK-412Token bucket store on Redis with per-key TTL	In Progress	High	Running	09:16
LRK-413Middleware: 429 with Retry-After and RateLimit-* headers	In Progress	High	Running	09:16
LRK-414Per-tenant overrides read from the plans table	In Progress	Medium	Running	09:16
LRK-415Load test: 12k rps burst, p99 under 40 ms	To Do	Medium	Blocked by 412, 413	09:16
LRK-416Docs: rate limits page and SDK retry examples	To Do	Low	Idle	09:16

+ Add issue

Rate limiter rewrite (5 of 5)

All issuesOpen

LRK-412Token bucket store	Done
LRK-413Middleware: 429 + headers	In Progress
LRK-414Per-tenant overrides	In Progress
LRK-415Load test 12k rps	To Do
LRK-416Docs and SDK retries	To Do

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14:05:12 larkspur-cloud-1 crashed: node OOM during cargo test (LRK-414). Status: offline.

14:05:14 supervisor: restarting factory from image, no human action.

14:06:40 larkspur-cloud-1 online. LRK-413 resumed from checkpoint 118, LRK-414 from checkpoint 97.

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# api-platformRate limits, gateway, public API

Dev Malhotra9:02 AM

Gateway p99 back to normal after the 08:00 spike.

Priya Raghunathan9:14 AM

Rate limiter is still the old in-memory one...

2 replies Last reply 6:32 PM

Message #api-platform

Thread# api-platform✕

Priya Raghunathan 9:14 AM

Rate limiter is still the old in-memory one... rewrite it on Redis, keep the public headers, per-tenant overrides, load test before you open a PR.

👀 2✅ 1

2 replies

ForgeCode APP 6:32 PM

PR #1187 is ready for review. 4 of 5 issues done; LRK-416 (docs) is open in review for you.

Redis token bucket with per-key TTL, 0 allocations on the hot path
429 responses carry Retry-After (integer seconds) and RateLimit-Limit / Remaining / Reset
Tenant overrides read from plans.rate_limit_rps, cached 30s
Load test: 12,400 rps burst for 5 min, p99 31 ms, 0 dropped

31 files, +1,412 / -688. Tests 212 passed. Clippy clean. Reviewer agent: 2 findings fixed before opening. Merge policy for this repo is ask me, so #1187 waits for you. Want a walkthrough of the Redis bucket before you review? Reply here and I will post one.

🎉 3👀 1

Reply...

Automations (7)

All 7Triggers 4Watchers 3Search automations

Title	Trigger	Last run	Next run
Production alert: open incident, find root cause, open PR	alert sentry prod	02:10	on alert
Nudge stalled issues: rerun from checkpoint after 6h idle	watch: issue idle 6h	03:35	on stall
Remind reviewer when a PR waits more than 8h	watch: PR waiting 8h	07:00	on wait
GitHub bug report: triage, reproduce, open issue	github issues	Mon 16:48	on event
Forum post tagged bug: reproduce and reply	forum discourse	Mon 11:02	on post
Slack message in #api-platform	slack @ForgeCode	09:14	on message
Nightly flaky test sweep, escalate if above 1%	schedule 02:00	02:00	Thu 02:00

02:10 alert: NullPointer in billing/invoice.rs:212, 38 events in 4 min. LRK-419 opened.
02:33 RCA: refunded invoices have no customer since PR #1174 dropped the join. PR #1188 opened; merge policy merge when gates pass for hotfix/*: merged 02:41.
02:44 posted for Dev Okonkwo (owns billing): what changed, why, and how to verify.

Rate limiter rewrite for the public API (6 of 6)

All issuesOpenSearch issues

Issue	Status	Priority	Runs	Updated
LRK-412Token bucket store on Redis with per-key TTL	Done	High	Idle	11:02
LRK-413Middleware: 429 with Retry-After and RateLimit-* headers	Done	High	Idle	12:48
LRK-414Per-tenant overrides read from the plans table	Done	Medium	Idle	15:20
LRK-415Load test: 12k rps burst, p99 under 40 ms	Done	Medium	Idle	18:19
LRK-416Docs: rate limits page and SDK retry examples	In Review	Low	Idle	18:31
LRK-419Incident: NullPointer in billing/invoice.rs (alert). PR #1188 merged by factory	Done	High	Idle	02:41

In ReviewPR #1187Rate limiter on Redis, ready for Priya since 18:32

Staged demopr-1187.staging.larkspur.dev Video proof429 and Retry-After walkthrough, 1:48 Load test report12,400 rps for 5 min, p99 31 ms

Verifications completed 6 of 6

Tests: 212 passed
Clippy: 0 warnings
Load test: p99 31 ms
Security scan: 0 findings
Staging smoke: 18 of 18
Reviewer agent: 2 fixed

reminder Priya: PR #1187 has waited 12h for your review. Demo and video are ready

Weekly summary larkspur-cloud-1, last 7 days

sent to #eng-leads 07:05

Executive summaryThroughputQualityIncidents

Shipped108+14% vs last week

Missions done16/171 in review

Trigger to PR, median3h 40mwas 5h 10m

Gates passed first time87%13% reworked before review

Incidents fixed3/3median 31 min to fix

Waiting on people4PRs in review, oldest 12h

Shipped per day

Where work started

Slack 38%GitHub 24%Schedules 17%Prompts 12%Alerts 9%

Summary for leadership

Done Public API rate limiter rebuilt on Redis. Load tested at 12,400 rps, p99 31 ms.

Fixed Billing NullPointer from PR #1174. Hotfix merged under policy in 31 min.

Decide PR #1187 needs Priya's review to ship the rate limiter to Scale customers.

Better Flaky tests down to 0.6% from 1.4%. Review nudges now fire after 4h.

Next Thursday 02:00: Postgres 16 upgrade mission starts, merge policy ask me.

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Your software factory.It never clocks out

Set it up once. It keeps shipping

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Your factory, your terms

What teams run on a factory

Own every alert for a quarter

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REST to GraphQL without a code freeze

Be the QA team

Run the platform team's backlog

Patch advisories across every repo

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Retire the legacy ORM, one call site at a time

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Your software factory.
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