Eas Workflows
expo/skills
Helps understand and write EAS workflow YAML files for Expo projects.
Agent skill
Interaction Latency
by nexus-labs-automation in nexus-labs-automation/mobile-observability
Measure time from user tap to action completion. An agent skill from nexus-labs-automation/mobile-observability.
Install Interaction Latency
$ npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nexus-labs-automation/mobile-observability interaction-latency --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/nexus-labs-automation/mobile-observability.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/interaction-latency .claude/skills/interaction-latency && rm -rf skills-srcUse ~/.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/
Install the "interaction-latency" agent skill from https://github.com/nexus-labs-automation/mobile-observability/tree/main/skills/interaction-latency into .claude/skills/interaction-latency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "interaction-latency", 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 install https://github.com/nexus-labs-automation/mobile-observability/tree/main/skills/interaction-latencyType 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.
$ npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nexus-labs-automation/mobile-observability interaction-latency --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-labs-automation/mobile-observability.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/interaction-latency .agents/skills/interaction-latency && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "interaction-latency" agent skill from https://github.com/nexus-labs-automation/mobile-observability/tree/main/skills/interaction-latency into .agents/skills/interaction-latency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "interaction-latency", 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.
$ npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nexus-labs-automation/mobile-observability interaction-latency --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-labs-automation/mobile-observability.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/interaction-latency .cursor/skills/interaction-latency && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "interaction-latency" agent skill from https://github.com/nexus-labs-automation/mobile-observability/tree/main/skills/interaction-latency into .cursor/skills/interaction-latency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "interaction-latency", 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 https://github.com/nexus-labs-automation/mobile-observability.git --path skills/interaction-latency--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nexus-labs-automation/mobile-observability interaction-latency --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-labs-automation/mobile-observability.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/interaction-latency .gemini/skills/interaction-latency && rm -rf skills-srcUse ~/.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/
Install the "interaction-latency" agent skill from https://github.com/nexus-labs-automation/mobile-observability/tree/main/skills/interaction-latency into .gemini/skills/interaction-latency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "interaction-latency", 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.
$ gh skill install nexus-labs-automation/mobile-observability interaction-latencyInstalls 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).
$ npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nexus-labs-automation/mobile-observability.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/interaction-latency .github/skills/interaction-latency && rm -rf skills-srcUse ~/.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/
Install the "interaction-latency" agent skill from https://github.com/nexus-labs-automation/mobile-observability/tree/main/skills/interaction-latency into .github/skills/interaction-latency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "interaction-latency", 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.
$ npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nexus-labs-automation/mobile-observability interaction-latency --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-labs-automation/mobile-observability.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/interaction-latency .opencode/skills/interaction-latency && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "interaction-latency" agent skill from https://github.com/nexus-labs-automation/mobile-observability/tree/main/skills/interaction-latency into .opencode/skills/interaction-latency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "interaction-latency", 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
interaction-latency- GitHub stars
- 116
- Token cost
- ~358 tokens
- SKILL.md length
- 118 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- MIT
At a glance
Measure time from user tap to action completion. An agent skill from nexus-labs-automation/mobile-observability.
- Works in 4 steps: Capture tap timestamp → Start span with operation name → End span when action confirms success → …
- Tracking button response times
- SKILL.md covers When to Use, Measurement Pattern, Key Thresholds and Implementation, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Interaction Latency is an agent skill from nexus-labs-automation/mobile-observability. Measure time from user tap to action completion. Use when tracking button response times, form submissions, add-to-cart, or any tap-triggered operation.
Its SKILL.md is about 360 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. The repository describes itself as: Claude Code plugin for mobile app observability: crash reporting, performance monitoring, and instrumentation for iOS, Android, and React Native. The licence is MIT.
When your agent uses it
- Tracking button response times
- Form submissions
- Any tap-triggered operation
Example prompts
- “/interaction-latency”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Capture tap timestamp
- Start span with operation name
- End span when action confirms success
- Include success/failure outcome
What it can do on your machine
Read from SKILL.md and the folder at commit 488c97f. 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
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
Interaction Latency loads about 358 tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 118 words of instructions outside code blocks.
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 nexus-labs-automation/mobile-observability at commit 488c97f, republished under its MIT licence (© nexus-labs-automation). 118 words, ~358 tokens.
Download SKILL.mdSave it as
.claude/skills/interaction-latency/SKILL.md (or your agent's skills folder).- name
- interaction-latency
- description
- Measure time from user tap to action completion. Use when tracking button response times, form submissions, add-to-cart, or any tap-triggered operation.
- triggers
- add to cart is slow, button feels slow, form submission timing, measure interaction latency, tap response time, track button performance
- priority
- 2
Interaction Latency
Time from user tap to action successfully completed.
When to Use
- "Add to cart" button tapped → cart updated
- "Submit" button tapped → form processed
- "Like" button tapped → state changed
- Any tap that triggers async work
Measurement Pattern
TAP → START_SPAN → [async work] → END_SPAN- Capture tap timestamp
- Start span with operation name
- End span when action confirms success
- Include success/failure outcome
Key Thresholds
| Rating | Duration |
|---|---|
| Good | <300ms |
| Acceptable | <1s |
| Poor | >1s |
Implementation
See references/ui-performance.md (Entry Point Latency section) for platform-specific code.
Common Mistakes
- Ending span on API call start (not completion)
- Not tracking failure cases
- Missing the tap timestamp (starting late)
Related Skills
- See
skills/navigation-latencyfor screen-to-screen transitions (vs single-tap actions) - Combine with
skills/user-journey-trackingfor friction detection on key interactions
© nexus-labs-automation, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/interaction-latency of nexus-labs-automation/mobile-observability.
Open the folder on GitHubat commit 488c97f
Compare with similar skills
Interaction Latency 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Interaction Latency this skillnexus-labs-automation/mobile-observability | 116 | — | ~358 | Automated safety check: Pass | MIT | |
| Eas Workflowsexpo/skills | 2.7k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Termux Safeferrumclaudepilgrim/claude-code-android | 268 | — | ~935 | Automated safety check: Pass | MIT | |
| Frb Dockerfzyzcjy/flutter_rust_bridge | 5.4k | — | ~914 | Automated safety check: Pass | MIT | |
| GitHub Actionscallstackincubator/agent-skills | 1.7k | 1 repos | ~703 | Automated safety check: Pass | MIT | |
| Relay ServerCodename-11/hermes-relay | 324 | — | ~965 | Automated safety check: Notes | MIT |
Similar skills
- Official
Termux Safe
ferrumclaudepilgrim/claude-code-android
Android/Termux constraints reference. An agent skill from ferrumclaudepilgrim/claude-code-android.
Frb Docker
fzyzcjy/flutter_rust_bridge
A skill your agent uses for ordinary flutterrustbridge Docker/devcontainer setup, local image usage, and Apple Silicon containers; route image upgrades and publishing to frb-upgrade-docker.
- Official
GitHub Actions
callstackincubator/agent-skills
GitHub Actions workflow patterns for React Native iOS simulator and Android emulator cloud builds with downloadable artifacts.
Relay Server
Codename-11/hermes-relay
Setup and run the Hermes-Relay server for Android chat support, terminal, bridge, and related relay features.
CI CD Setup
rshankras/claude-code-apple-skills
Generate CI/CD configuration for automated builds, tests, and distribution of iOS/macOS apps.
More from nexus-labs-automation/mobile-observability
All 8 skills in this repoCrash Instrumentation
nexus-labs-automation/mobile-observability
Set up crash instrumentation with actionable context. An agent skill from nexus-labs-automation/mobile-observability.
Instrumentation Planning
nexus-labs-automation/mobile-observability
Plan what to measure in mobile apps. An agent skill from nexus-labs-automation/mobile-observability.
Network Tracing
nexus-labs-automation/mobile-observability
Instrument API requests with spans and distributed tracing. An agent skill from nexus-labs-automation/mobile-observability.
Symbolication Setup
nexus-labs-automation/mobile-observability
Configure crash symbolication for readable stack traces. An agent skill from nexus-labs-automation/mobile-observability.
Navigation Latency
nexus-labs-automation/mobile-observability
Measure time from navigation tap to screen fully loaded and interactive.
User Journey Tracking
nexus-labs-automation/mobile-observability
Track user journeys with intent context and friction signals.
Related
Categories
Questions about Interaction Latency
What does Interaction Latency do?
Measure time from user tap to action completion. An agent skill from nexus-labs-automation/mobile-observability. Interaction Latency is an agent skill from nexus-labs-automation/mobile-observability. Measure time from user tap to action completion.
When should I use Interaction Latency?
Interaction Latency fits situations like: tracking button response times; form submissions; any tap-triggered operation.
How do I install Interaction Latency in Claude Code?
Run `npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a claude-code`. Or copy the skill folder (skills/interaction-latency in nexus-labs-automation/mobile-observability) into .claude/skills/interaction-latency in your project. Claude Code loads it when a task matches its description.
How do I install Interaction Latency in Codex?
Run `npx skills add nexus-labs-automation/mobile-observability --skill interaction-latency -a codex`. Or copy the skill folder (skills/interaction-latency in nexus-labs-automation/mobile-observability) into .agents/skills/interaction-latency in your project. Codex loads it when a task matches its description.
Can I use Interaction Latency 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 nexus-labs-automation/mobile-observability --skill interaction-latency -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/interaction-latency, .gemini/skills/interaction-latency, .github/skills/interaction-latency and .opencode/skills/interaction-latency in your project.
What does Interaction Latency need to run?
SKILL.md names no scripts, command-line tools or credentials: Interaction Latency is instructions for the agent only.
Does Interaction Latency access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Interaction Latency 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 Interaction Latency use?
Interaction Latency is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Interaction Latency use?
About 358 tokens (SKILL.md is roughly 1.4k 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 Interaction Latency?
Skills that share tags, products or a category with Interaction Latency: Eas Workflows (expo/skills, 2.7k stars), Termux Safe (ferrumclaudepilgrim/claude-code-android, 268 stars), Frb Docker (fzyzcjy/flutter_rust_bridge, 5.4k stars) and GitHub Actions (callstackincubator/agent-skills, 1.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Interaction Latency?
nexus-labs-automation (a GitHub organization) maintains it in nexus-labs-automation/mobile-observability, which has 116 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on August 23, 2026.
Source: nexus-labs-automation/mobile-observability on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.