Agent skill

Span File Export

by forcedotcom in forcedotcom/salesforcedx-vscode

Use file-based span/log export for AI consumption. An agent skill from forcedotcom/salesforcedx-vscode.

BSD-3-ClauseAuto-check passedDevOps & Cloud

Install Span File Export

skills CLI

$ npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install forcedotcom/salesforcedx-vscode span-file-export --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/span-file-export .claude/skills/span-file-export && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "span-file-export" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/span-file-export into .claude/skills/span-file-export/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "span-file-export", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/span-file-export

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install forcedotcom/salesforcedx-vscode span-file-export --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/span-file-export .agents/skills/span-file-export && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "span-file-export" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/span-file-export into .agents/skills/span-file-export/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "span-file-export", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install forcedotcom/salesforcedx-vscode span-file-export --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/span-file-export .cursor/skills/span-file-export && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "span-file-export" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/span-file-export into .cursor/skills/span-file-export/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "span-file-export", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/forcedotcom/salesforcedx-vscode.git --path .claude/skills/span-file-export

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install forcedotcom/salesforcedx-vscode span-file-export --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/span-file-export .gemini/skills/span-file-export && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "span-file-export" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/span-file-export into .gemini/skills/span-file-export/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "span-file-export", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install forcedotcom/salesforcedx-vscode span-file-export

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/span-file-export .github/skills/span-file-export && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "span-file-export" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/span-file-export into .github/skills/span-file-export/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "span-file-export", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install forcedotcom/salesforcedx-vscode span-file-export --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/span-file-export .opencode/skills/span-file-export && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "span-file-export" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/span-file-export into .opencode/skills/span-file-export/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "span-file-export", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: span-file-export
GitHub stars: 1k
Token cost: ~2.2k tokens
SKILL.md length: 632 words
Files: 1
Skills in repo: 37
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: BSD-3-Clause

At a glance

Use file-based span/log export for AI consumption. An agent skill from forcedotcom/salesforcedx-vscode.

Works in 3 steps: npm run spans:server -w… → Add to .esbuild-web-extra-settings.json… → npm run run:web -w packages/
Enabling span file dump
SKILL.md covers Settings, Location, Record Format and Enable (Desktop), plus 3 more sections
Calls npm and jq

What it does

Span File Export is an agent skill from forcedotcom/salesforcedx-vscode. Use file-based span/log export for AI consumption. Where it lives, how to enable/clear, record format for Node and Web. Use when enabling span file dump, debugging traces for AI, or configuring local observability.

Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud, covering Observability. It works with Visual Studio Code and OpenTelemetry. The repository describes itself as: Salesforce Extensions for VS Code. The licence is BSD-3-Clause.

When your agent uses it

Enabling span file dump
Debugging traces for AI
Configuring local observability

Example prompts

“/span-file-export”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

npm run spans:server -w salesforcedx-vscode-services
Add to .esbuild-web-extra-settings.json at repo root (gitignored)
npm run run:web -w packages/

What it can do on your machine

Read from SKILL.md and the folder at commit 27807f6. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- npm
- jq
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Span File Export loads about 2.2k tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 632 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~58
When it runs · the whole SKILL.md, loaded when a task matches: ~2.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from forcedotcom/salesforcedx-vscode at commit 27807f6, republished under its BSD-3-Clause licence (© forcedotcom). 632 words, ~2,203 tokens.

Download SKILL.mdSave it as .claude/skills/span-file-export/SKILL.md (or your agent's skills folder).

name: span-file-export
description: Use file-based span/log export for AI consumption. Where it lives, how to enable/clear, record format for Node and Web. Use when enabling span file dump, debugging traces for AI, or configuring local observability.
review: never

Span & Log File Export

Local OTLP export to ~/.sf/vscode-spans/ for AI consumers. Spans + log records interleaved in one JSONL file.

Settings

Setting	Default	Purpose
`salesforcedx-vscode-salesforcedx.enableFileTraces`	`false`	Enable file capture (spans + logs)
`salesforcedx-vscode-salesforcedx.logLevel`	`error`	Min log level exported. `info`/`debug` for most logs.
`SF_LOG_LEVEL` env var	—	Fallback when setting unset (`fatal`→`error`)

Reload window after changing — SDK layer builds at activation.

Location

Dir: ~/.sf/vscode-spans/. Filename: {ISO-timestamp}.jsonl (e.g. 2026-05-22T15-33-01-398Z.jsonl).

Latest: ls -lt ~/.sf/vscode-spans/ | head -1

Record Format

Each line independent JSON. Discriminate on kind.

Spans (`kind: "span"`)

jsonl

{"kind":"span","traceId":"abc123","spanId":"def456","parentSpanId":"","name":"ConnectionService.getConnection","spanKind":1,"startTimeUnixNano":"1779461510277547833","endTimeUnixNano":"1779461510278117291","attributes":{"orgId":"00D..."},"events":[],"links":[],"status":{"code":1,"message":""},"resource":{"attributes":{"extension.name":"salesforcedx-vscode-core","service.name":"salesforcedx-vscode-core"}},"instrumentationScope":{"name":"salesforcedx-vscode-core","version":"2026-03-02T01:00.304Z"}}

Field	Notes
`parentSpanId: ""`	Root span
`status.code`	1=OK, 2=ERROR
`spanKind`	OTEL SpanKind +1 (1=INTERNAL, 2=SERVER, 3=CLIENT)
`resource.attributes["extension.name"]`	Emitting extension
Duration (ms)	`(endTimeUnixNano - startTimeUnixNano) / 1_000_000`

Identity attrs (userId, cliId, webUserId, orgId, common.*) stamped only on root spans — child spans have them null; not a gap. Mirrors the App Insights properties exactly. userId absent for expired/unauthenticated orgs. Note: an internal diagnostic child span (maybeUpdateDefaultOrgRef) annotates the literal string "undefined" when SOQL userId is unresolved — that string never reaches exported root spans (filtered out).

f=$(ls -t ~/.sf/vscode-spans/*.jsonl | head -1)
jq -rc 'select(.kind=="span" and .parentSpanId=="") | {name, userId:.attributes.userId, cliId:.attributes.cliId, webUserId:.attributes.webUserId, orgId:.attributes.orgId}' "$f" | sort -u

Logs (`kind: "log"`)

jsonl

{"kind":"log","timestamp":"1779463981397000000","severityText":"WARN","severityNumber":30000,"body":"UserIdNotFoundError: Could not determine user ID","traceId":"b4d710...","spanId":"706dfc...","attributes":{"fiberId":"#295"}}

Field	Notes
`traceId` + `spanId`	Span active when log emitted
`severityText`	INFO, WARN, ERROR (filtered by `logLevel`)
`body`	String or array (multiple args)
`timestamp`	Nanos since epoch

Enable (Desktop)

json

{
  "salesforcedx-vscode-salesforcedx.enableFileTraces": true,
  "salesforcedx-vscode-salesforcedx.logLevel": "info"
}

Hosted Web Console cannot write this dir. Local OTLP (enableLocalTraces → :4318) → web-console-local-traces.

Enable (Web / run:web)

Web POSTs to local span file server (port 3003). Server must run.

npm run spans:server -w salesforcedx-vscode-services
Add to .esbuild-web-extra-settings.json at repo root (gitignored):
json
```
{ "salesforcedx-vscode-salesforcedx.enableFileTraces": true }
```
npm run run:web -w packages/<extension>

App Insights Telemetry Capture

Inspect App Insights telemetry each platform would send to Azure — captured locally, never sent. Output: ~/.sf/vscode-appinsights/ (separate from spans), via same server (port 3003).

Platform	Trigger	Exporter	Endpoint	File prefix
Desktop (Node)	Dev/Test mode (auto); custom port via `SF_OTEL_INGESTION_ENDPOINT`	Azure Monitor	`/v2.1/track`	`appinsights-`
Web	`ESBUILD_WEB_LOCAL=1` (auto under `run:web`)	`@vscode/extension-telemetry`	`/v2.1/track`	`appinsights-web-`

Start server first: npm run spans:server -w salesforcedx-vscode-services

Show full SKILL.md (328 more words)Show less

Desktop (Node)

Extension via --extensionDevelopmentPath (F5, vscode-test, Playwright desktop e2e) = ExtensionMode.Development/Test, which auto-diverts App Insights to http://localhost:3003/v2.1/track — no env var or setting. Telemetry force-enabled (provably can't reach Azure).

Custom port: SF_OTEL_INGESTION_ENDPOINT=http://localhost:NNNN.

Divert Mechanism: Connection string stays pristine. Both FilteredAzureMonitorTraceExporter (dependencies path) and ApplicationInsightsNodeExporter (customEvents path) swap their private HTTP transport to POST Breeze envelopes over plain HTTP to {localIngestionEndpoint}/v2.1/track. Why swap transport? The Azure SDK's ConnectionStringParser.sanitizeUrl force-upgrades http:// → https://, blocking plain-HTTP localhost servers.

Server gzip-decompresses, writes raw Breeze envelopes (exact wire format Azure receives). Top-level keys: name, time, instrumentationKey, sampleRate, tags, version, data. No iKey, no target. Custom dimensions (IDs, common.*) live in data.baseData.properties, NOT directly under baseData:

jsonl

{"name":"Microsoft.ApplicationInsights.RemoteDependency","time":"2026-06-15T15:44:24.223Z","instrumentationKey":"f5cbbeba-...","sampleRate":100,"version":1,"tags":{"ai.cloud.role":"salesforcedx-vscode-core","ai.operation.id":"f2da4484..."},"data":{"baseType":"RemoteDependencyData","baseData":{"name":"ConnectionService.getConnection","id":"1250a85f...","success":true,"resultCode":"0","duration":"00:00:00.001","properties":{"common.extname":"salesforcedx-vscode-core","cliId":"00d6...","webUserId":"701b...","userId":"005..."},"measurements":{}}}}

Filename: appinsights-{ISO-timestamp}.jsonl. data.baseType: RemoteDependencyData (span path), MetricData, ExceptionData, or EventData (customEvents path).

Field	Notes
`instrumentationKey`	connection key (NOT `iKey`)
`tags["ai.cloud.role"]`	emitting extension
`data.baseData.properties`	custom dimensions: `cliId`, `webUserId`, `userId`, `common.*`, `telemetryTag`

Identity lands only on root spans (spanTransformProcessor gates on !span.parentSpanContext) → most envelopes/spans lack IDs; that's expected, not a gap. userId (SOQL-derived) is absent until an org is authenticated and the query resolves; absent for expired orgs. cliId/webUserId are install-stable, present once seedTelemetryIdentities runs at activation — activation spans firing before that seeding are bare.

customEvents path (EventData, via ApplicationInsightsNodeExporter) only emits when an extension's packageJSON sets enableCustomEventsFromSpans. None do today — so only the dependencies path (RemoteDependencyData) appears.

Useful queries:

g=$(ls -t ~/.sf/vscode-appinsights/*.jsonl | head -1)
jq -rc '.data.baseType' "$g" | sort | uniq -c                                  # envelope mix
jq -rc 'select(.data.baseType=="RemoteDependencyData") | {name:.data.baseData.name, role:.tags["ai.cloud.role"], userId:.data.baseData.properties.userId, cliId:.data.baseData.properties.cliId, webUserId:.data.baseData.properties.webUserId}' "$g"

Web

npm run run:web builds via vscode:bundle:local, setting ESBUILD_WEB_LOCAL=1 — web exporter POSTs to http://localhost:3003/v2.1/track (shared Node endpoint). (SF_OTEL_INGESTION_ENDPOINT has no effect on web: connection string hard-coded.)

Payload is not Breeze — it's the @vscode/extension-telemetry shape:

jsonl

{"name":"ConnectionService.getConnection","eventType":"event","properties":{"orgId":"00D...","common.extname":"salesforcedx-vscode-core"},"measurements":{"duration":42}}

Filename: appinsights-web-{ISO-timestamp}.jsonl. eventType: event (success) or errorEvent (failed span).

Workflow

npm run spans:server -w salesforcedx-vscode-services
Desktop: launch extension in dev/test mode (auto). Web: npm run run:web -w packages/<extension> (auto).
Trigger commands/spans
View: cat ~/.sf/vscode-appinsights/*.jsonl | jq '.' | less

Clear

rm ~/.sf/vscode-appinsights/*

Trace Correlation

Logs reference active span via traceId + spanId. Reconstruct:

Find all spans with a traceId
Build tree via parentSpanId → children
Find logs with same traceId — belong to span matching their spanId

Files

Just SKILL.md in .claude/skills/span-file-export of forcedotcom/salesforcedx-vscode.

Open the folder on GitHubat commit 27807f6

Compare with similar skills

Span File Export next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Span File Export compared with similar skills
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UModel Root Cause Analysisalibaba/UnifiedModel	412	—	~1.9k	Automated safety check: Pass	Custom licence	14 days ago

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Questions about Span File Export

What does Span File Export do?

Use file-based span/log export for AI consumption. An agent skill from forcedotcom/salesforcedx-vscode. Span File Export is an agent skill from forcedotcom/salesforcedx-vscode. Use file-based span/log export for AI consumption.

When should I use Span File Export?

Span File Export fits situations like: enabling span file dump; debugging traces for AI; configuring local observability.

How do I install Span File Export in Claude Code?

Run `npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a claude-code`. Or copy the skill folder (.claude/skills/span-file-export in forcedotcom/salesforcedx-vscode) into .claude/skills/span-file-export in your project. Claude Code loads it when a task matches its description.

How do I install Span File Export in Codex?

Run `npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a codex`. Or copy the skill folder (.claude/skills/span-file-export in forcedotcom/salesforcedx-vscode) into .agents/skills/span-file-export in your project. Codex loads it when a task matches its description.

Can I use Span File Export in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add forcedotcom/salesforcedx-vscode --skill span-file-export -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/span-file-export, .gemini/skills/span-file-export, .github/skills/span-file-export and .opencode/skills/span-file-export in your project.

What does Span File Export need to run?

Going by SKILL.md and its folder, Span File Export needs the command-line tools its instructions call (npm and jq).

Does Span File Export access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Span File Export safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Span File Export use?

Span File Export is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Span File Export use?

About 2.2k tokens (SKILL.md is roughly 8.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Span File Export?

Skills that share tags, products or a category with Span File Export: Motel Debug (kitlangton/motel, 298 stars), Aspire Service Defaults (Aaronontheweb/dotnet-skills, 1.2k stars), Sentry Advanced Troubleshooting (jeremylongshore/tons-of-skills-marketplace, 2.8k stars) and Temps (gotempsh/temps, 826 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Span File Export?

forcedotcom (a GitHub organization) maintains it in forcedotcom/salesforcedx-vscode, which has 1,035 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on October 8, 2026.

Source: forcedotcom/salesforcedx-vscode on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Span File Export

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Span & Log File Export

Settings

Location

Record Format

Spans (kind: "span")

Logs (kind: "log")

Enable (Desktop)

Enable (Web / run:web)

App Insights Telemetry Capture

Desktop (Node)

Web

Workflow

Clear

Trace Correlation

Files

Compare with similar skills

Similar skills

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Questions about Span File Export

Spans (`kind: "span"`)

Logs (`kind: "log"`)