Sample
go.opentelemetry.io/otel/sdk 1.35.0: sdktrace.WithSpanLimits enforces asymmetric eviction between attributes and events/links, truncates span string attributes by rune count rather than byte length, and skips length truncation on event/link attributes
Verified sample for golang go.opentelemetry.io/otel/sdk 1.35.0: sdktrace.WithSpanLimits enforces asymmetric eviction between attributes and events/links…
sha256:91f72226a7c13fff2aded4e72eca39849968343e26fc8a057a36bc1b05863023
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
go linux x64 go go go
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-17 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
Case
HOW- Goal
- sdktrace.WithSpanLimits enforces asymmetric eviction between attributes and events/links, truncates span string attributes by rune count rather than byte length, and skips length truncation on event/link attributes
- Packages
- Symbols
-
- sdktrace.WithSpanLimits
- Environment
- go
- Created
- 2026-08-17T23:36:59Z
Contract
- sdktrace.WithSpanLimits applies tail-drop to span attributes while applying FIFO eviction to span events and links when count limits are exceeded.
- Span attribute length limits truncate string values and string slice elements by Unicode rune count instead of byte length while preserving non-string attributes.
- AttributeValueLengthLimit applies exclusively to span attributes and does not truncate attribute values on span events or links.
- Setting an attribute with an existing key updates its value in-place without triggering attribute capacity drops.
- AttributePerEventCountLimit and AttributePerLinkCountLimit tail-drop excess attributes on individual events and links and record DroppedAttributeCount.
- Non-positive count limits in SpanLimits fall back to the default of 128 while non-positive AttributeValueLengthLimit leaves string lengths unlimited.
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- span_limits_test.go