fix: flatten OTEL cache attribute names for Sentry compatibility

[lpcox]

Sentry's OTLP ingestion drops span attributes with deeply nested dot notation (4+ segments). This flattens cache/reasoning attribute names so they appear in Sentry.

• gen_ai.usage.cache_read.input_tokens → gen_ai.usage.cache_read_input_tokens
• gen_ai.usage.cache_creation.input_tokens → gen_ai.usage.cache_creation_input_tokens
• gen_ai.usage.reasoning.output_tokens → gen_ai.usage.reasoning_output_tokens

Tests: 32/32 pass

[github-actions]

✅ Coverage Check Passed

Overall Coverage

Metric	Base	PR	Delta
Lines	95.75%	95.83%	📈 +0.08%
Statements	95.58%	95.65%	📈 +0.07%
Functions	96.88%	96.88%	➡️ +0.00%
Branches	89.30%	89.34%	📈 +0.04%

📁 Per-file Coverage Changes (1 files)

File	Lines (Before → After)	Statements (Before → After)
src/config-writer.ts	83.0% → 85.6% (+2.54%)	83.0% → 85.6% (+2.54%)

---

Coverage comparison generated by scripts/ci/compare-coverage.ts

[github-actions]

Smoke Test Results

✅ GitHub API: 2 PR entries confirmed in recent-prs.json
✅ Playwright: GitHub homepage title contains "GitHub"
✅ File verify: smoke-test-claude-26197951962.txt exists

PASS — All smoke tests passed.

💥 [THE END] — Illustrated by Smoke Claude

[github-actions]

🤖 Copilot Smoke Test Results

Test	Result
GitHub MCP	✅ PR fetched: "fix: flatten OTEL cache attribute names for Sentry compatibility"
GitHub.com connectivity	✅ Reachable
File write/read	✅ /tmp/gh-aw/agent/smoke-test-copilot-26197951896.txt confirmed

Overall: PASS

Author: @lpcox

📰 BREAKING: Report filed by Smoke Copilot

[github-actions]

🔥 Smoke Test: Copilot BYOK (Offline) Mode

Test	Result
GitHub MCP connectivity	✅ PR listed successfully
GitHub.com HTTP	⚠️ Template vars unexpanded (${{ steps.smoke-data.outputs.SMOKE_HTTP_CODE }})
File write/read	⚠️ Template vars unexpanded (${{ steps.smoke-data.outputs.SMOKE_FILE_PATH }})
BYOK inference (api-proxy → api.githubcopilot.com)	✅ Responding via BYOK offline mode

Running in BYOK offline mode (COPILOT_OFFLINE=true) via api-proxy → api.githubcopilot.com.

PR by @lpcox · reviewer: @Copilot

Overall: PARTIAL — BYOK inference ✅, but smoke-data template variables were not expanded (workflow config issue).

🔑 BYOK report filed by Smoke Copilot BYOK

[github-actions]

GitHub PR review ✅ fix: flatten OTEL cache attribute names for Sentry compatibility; fix: align OTEL attributes with gen_ai semconv spec
Safe Inputs GH CLI ❌ safeinputs-gh missing
Playwright ✅ title contains GitHub
Tavily search ❌ no Tavily tools available
File/Bash ✅ smoke-test-codex-26197951797.txt verified
Discussion interaction ❌ github-discussion-query missing
Build AWF ✅ npm ci && npm run build
Overall status: FAIL

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

• registry.npmjs.org

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "registry.npmjs.org"

See Network Configuration for more information.

🔮 The oracle has spoken through Smoke Codex

[github-actions]

Smoke Test: API Proxy OpenTelemetry Tracing

Scenario	Status	Notes
1. Module Loading	✅	otel.js loads successfully; exports: startRequestSpan, setTokenAttributes, endSpan, endSpanError, shutdown, isEnabled
2. Test Suite	✅	32/32 tests passed in otel.test.js — span creation, token attributes, parent context, error handling, OTLP export, file fallback
3. Env Var Forwarding	✅	src/services/api-proxy-service.ts forwards OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_HEADERS, OTEL_SERVICE_NAME, GITHUB_AW_OTEL_TRACE_ID, GITHUB_AW_OTEL_PARENT_SPAN_ID
4. Token Tracker Integration	✅	onUsage callback exists in token-tracker-http.js (line 232) as the OTEL hook point
5. OTEL Diagnostics	✅	isEnabled() returns true; graceful file fallback to /var/log/api-proxy/otel.jsonl when OTLP endpoint unset

All 5 scenarios passed. OTEL tracing integration is fully functional.

📡 OTel tracing validated by Smoke OTel Tracing

[github-actions]

Chroot Version Comparison

Runtime	Host Version	Chroot Version	Match?
Python	Python 3.12.13	Python 3.12.3	❌
Node.js	v24.15.0	v20.20.2	❌
Go	go1.22.12	go1.22.12	✅

Result: Not all tests passed — Python and Node.js versions differ between host and chroot.

Tested by Smoke Chroot

[github-actions]

🏗️ Build Test Suite Results

Ecosystem	Project	Build/Install	Tests	Status
Bun	elysia	✅	1/1 passed	✅ PASS
Bun	hono	✅	1/1 passed	✅ PASS
C++	fmt	✅	N/A	✅ PASS
C++	json	✅	N/A	✅ PASS
Deno	oak	N/A	1/1 passed	✅ PASS
Deno	std	N/A	1/1 passed	✅ PASS
.NET	hello-world	✅	N/A	✅ PASS
.NET	json-parse	✅	N/A	✅ PASS
Go	color	✅	1/1 passed	✅ PASS
Go	env	✅	1/1 passed	✅ PASS
Go	uuid	✅	1/1 passed	✅ PASS
Java	gson	✅	1/1 passed	✅ PASS
Java	caffeine	✅	1/1 passed	✅ PASS
Node.js	clsx	✅	passed	✅ PASS
Node.js	execa	✅	passed	✅ PASS
Node.js	p-limit	✅	passed	✅ PASS
Rust	fd	✅	1/1 passed	✅ PASS
Rust	zoxide	✅	1/1 passed	✅ PASS

Overall: 8/8 ecosystems passed — ✅ PASS

Generated by Build Test Suite for issue #3492 · ● 5.4M · ◷

[github-actions]

Smoke Test Results

• Redis PING: ❌ (timeout — no response on host.docker.internal:6379)
• PostgreSQL pg_isready: ❌ (no response on host.docker.internal:5432)
• PostgreSQL SELECT 1: ❌ (skipped — pg_isready failed)

Overall: FAIL — service containers unreachable via host.docker.internal.

🔌 Service connectivity validated by Smoke Services

[github-actions]

Gemini Smoke Test Results - FAIL

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

• localhost

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "localhost"

See Network Configuration for more information.

💎 Faceted by Smoke Gemini