[dustinbyrne]

💡 Motivation and Context

Local gt, gte, lt, and lte comparisons could order numeric strings lexicographically, changing flag membership relative to remote evaluation. For example, "10" gt 2 should match and "100" lt 30 should not.

Use complete ASCII decimal parsing and finite binary64 comparison, following the shared SDK specification. Existing numeric JSON filter operands remain supported alongside the spec's string operands. Invalid actual values are definitive no-matches; invalid conditions remain inconclusive and retain existing remote-fallback eligibility. Preserves finite, already-loaded BigDecimal properties. Rails uses the shared Ruby evaluator.

Related to PostHog/posthog-python#1077. Part of the coordinated Python, Ruby/Rails, PHP and Java server correction.

Related SDK PRs:

• Python: fix(flags): compare numeric string properties numerically posthog-python#1088
• PHP: fix(flags): compare numeric string properties numerically posthog-php#270
• Java: fix(server): compare numeric string flag properties numerically posthog-android#862

💚 How did you test it?

• Focused numeric ordering, null and fallback regressions.
• Full default and optional OpenTelemetry RSpec suites.
• RuboCop and public API snapshot check.

Regression coverage checks all four operators, numeric/string operands, strict parsing, non-finite values, rounding, null/missing properties and local-only versus remote fallback. The same regressions were checked across the affected SDKs. Scoped patch release metadata is included because evaluated membership can change.

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• I included scoped patch release metadata for the behavior correction.

🤖 Agent context

Autonomy: Human-driven (agent-assisted)

Implemented with Pi and isolated SDK workers. Ran simplify and the pre-PR review loop with fresh read-only reviewers; shared findings were checked against all four SDKs. Human review is still required.

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[github-actions]

posthog-ruby-sync Compliance Report

Date: 2026-10-19T23:27:12.098467+00:00
Duration: 94253ms

⚠️ Some Tests Failed

45/47 tests passed, 2 failed

---

Capture Tests

⚠️ 29/30 tests passed, 1 failed

View Details

Test	Status	Duration
Format Validation.Event Has Required Fields	✅	9ms
Format Validation.Event Has Uuid	✅	7ms
Format Validation.Event Has Lib Properties	✅	6ms
Format Validation.Distinct Id Is String	✅	9ms
Format Validation.Token Is Present	✅	7ms
Format Validation.Custom Properties Preserved	✅	7ms
Format Validation.Event Has Timestamp	✅	7ms
Format Validation.Non Utc Event Timestamp Is Converted To Utc	✅	7ms
Retry Behavior.Retries On 503	✅	5374ms
Retry Behavior.Does Not Retry On 400	✅	2009ms
Retry Behavior.Does Not Retry On 401	✅	2009ms
Retry Behavior.Respects Retry After Header	✅	8018ms
Retry Behavior.Implements Backoff	✅	15375ms
Retry Behavior.Retries On 500	✅	5117ms
Retry Behavior.Retries On 502	✅	5139ms
Retry Behavior.Retries On 504	✅	5116ms
Retry Behavior.Max Retries Respected	✅	15667ms
Deduplication.Generates Unique Uuids	✅	22ms
Deduplication.Preserves Uuid On Retry	✅	5143ms
Deduplication.Preserves Uuid And Timestamp On Retry	✅	10253ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5121ms
Deduplication.No Duplicate Events In Batch	✅	19ms
Deduplication.Different Events Have Different Uuids	✅	9ms
Compression.Sends Gzip When Enabled	✅	6ms
Batch Format.Uses Proper Batch Structure	✅	7ms
Batch Format.Flush With No Events Sends Nothing	✅	4ms
Batch Format.Multiple Events Batched Together	❌	16ms
Error Handling.Does Not Retry On 403	✅	2009ms
Error Handling.Does Not Retry On 413	✅	2010ms
Error Handling.Retries On 408	✅	5115ms

Failures

batch_format.multiple_events_batched_together

Expected 1 requests, got 5

Feature_Flags Tests

⚠️ 16/17 tests passed, 1 failed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	9ms
Request Payload.Flags Request Uses V2 Query Param	✅	7ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	9ms
Request Payload.Flags Request Omits Authorization Header	✅	8ms
Request Payload.Token In Flags Body Matches Init	✅	7ms
Request Payload.Groups Round Trip	✅	6ms
Request Payload.Groups Default To Empty Object	✅	7ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	6ms
Request Payload.Disable Geoip Omitted Defaults To False	❌	6ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	7ms
Request Lifecycle.No Flags Request On Init Alone	✅	2ms
Request Lifecycle.No Flags Request On Normal Capture	✅	6ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	9ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	8ms
Retry Behavior.Retries Flags On 502	✅	108ms
Retry Behavior.Retries Flags On 504	✅	109ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	8ms

Failures

request_payload.disable_geoip_omitted_defaults_to_false

Field 'geoip_disable' not found in /flags request body at path 'geoip_disable'. Available keys: ['distinct_id', 'groups', 'person_properties', 'group_properties', 'flag_keys_to_evaluate', 'token']

[github-actions]

posthog-ruby-async Compliance Report

Date: 2026-10-19T23:27:25.314195+00:00
Duration: 98526ms

⚠️ Some Tests Failed

46/47 tests passed, 1 failed

---

Capture Tests

✅ 30/30 tests passed

View Details

Test	Status	Duration
Format Validation.Event Has Required Fields	✅	109ms
Format Validation.Event Has Uuid	✅	106ms
Format Validation.Event Has Lib Properties	✅	111ms
Format Validation.Distinct Id Is String	✅	107ms
Format Validation.Token Is Present	✅	107ms
Format Validation.Custom Properties Preserved	✅	107ms
Format Validation.Event Has Timestamp	✅	108ms
Format Validation.Non Utc Event Timestamp Is Converted To Utc	✅	9ms
Retry Behavior.Retries On 503	✅	5311ms
Retry Behavior.Does Not Retry On 400	✅	2109ms
Retry Behavior.Does Not Retry On 401	✅	2109ms
Retry Behavior.Respects Retry After Header	✅	8016ms
Retry Behavior.Implements Backoff	✅	15723ms
Retry Behavior.Retries On 500	✅	5211ms
Retry Behavior.Retries On 502	✅	5214ms
Retry Behavior.Retries On 504	✅	5212ms
Retry Behavior.Max Retries Respected	✅	15722ms
Deduplication.Generates Unique Uuids	✅	111ms
Deduplication.Preserves Uuid On Retry	✅	5212ms
Deduplication.Preserves Uuid And Timestamp On Retry	✅	10317ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5215ms
Deduplication.No Duplicate Events In Batch	✅	113ms
Deduplication.Different Events Have Different Uuids	✅	108ms
Compression.Sends Gzip When Enabled	✅	107ms
Batch Format.Uses Proper Batch Structure	✅	107ms
Batch Format.Flush With No Events Sends Nothing	✅	4ms
Batch Format.Multiple Events Batched Together	✅	111ms
Error Handling.Does Not Retry On 403	✅	2108ms
Error Handling.Does Not Retry On 413	✅	2108ms
Error Handling.Retries On 408	✅	5212ms

Feature_Flags Tests

⚠️ 16/17 tests passed, 1 failed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	107ms
Request Payload.Flags Request Uses V2 Query Param	✅	108ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	107ms
Request Payload.Flags Request Omits Authorization Header	✅	107ms
Request Payload.Token In Flags Body Matches Init	✅	107ms
Request Payload.Groups Round Trip	✅	107ms
Request Payload.Groups Default To Empty Object	✅	107ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	107ms
Request Payload.Disable Geoip Omitted Defaults To False	❌	107ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	108ms
Request Lifecycle.No Flags Request On Init Alone	✅	3ms
Request Lifecycle.No Flags Request On Normal Capture	✅	107ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	114ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	107ms
Retry Behavior.Retries Flags On 502	✅	211ms
Retry Behavior.Retries Flags On 504	✅	259ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	108ms

Failures

request_payload.disable_geoip_omitted_defaults_to_false

Field 'geoip_disable' not found in /flags request body at path 'geoip_disable'. Available keys: ['distinct_id', 'groups', 'person_properties', 'group_properties', 'flag_keys_to_evaluate', 'token']