Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/flurdy/agent-skills/eas-build-errornpx skills add flurdy/agent-skills --skill eas-build-errorgit clone --depth 1 https://github.com/flurdy/agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/flurdy/agent-skills/eas-build-error)<a href="https://agentmods.dev/skills/flurdy/agent-skills/eas-build-error"><img src="https://agentmods.dev/badge/skills/flurdy/agent-skills/eas-build-error.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00036 | $0.01028 |
| Opus 5 | $0.00018 | $0.00514 |
| Sonnet 5 | $0.00007 | $0.00206 |
| Haiku 4.5 | $0.00004 | $0.00103 |
Grade A, and why
eas-build-error scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.
EAS Build Error - View latest build status and errors
Show the status and errors from the latest EAS build.
Usage
/eas-build-error # Latest build (any platform)
/eas-build-error ios # Latest iOS build
/eas-build-error android # Latest Android build
/eas-build-error <build-id> # Specific build by ID
Implementation
Step 1: Get the build
Parse the argument to determine what to fetch:
- If argument looks like a UUID (contains hyphens, 36 chars): treat as build ID
npx eas build:view <build-id> --json - If argument is
iosorandroid: filter by platformnpx eas build:list --limit=1 --platform=<platform> --json --non-interactive - If no argument: get latest build across all platforms
npx eas build:list --limit=1 --json --non-interactive
Step 2: Display build summary
From the JSON output, extract and display:
## EAS Build: <STATUS>
| Field | Value |
|-------------|--------------------------------|
| ID | <id> |
| Platform | <platform> |
| Profile | <buildProfile> |
| Status | <status> (with emoji: ✓/✗/⏳) |
| Commit | <gitCommitHash> <gitCommitMessage> |
| Started | <createdAt> |
| Duration | <computed from metrics> |
| Logs | <link to expo.dev> |
Step 3: Show errors (if build failed)
If status is ERRORED or CANCELED:
-
Show the error field from the JSON:
### Error <error.message> -
Fetch detailed logs — try each URL in
logFilesarray:- Use
WebFetchon each log URL - Extract error lines, warnings, and failure details
- If URLs return 404 (expired), note that logs have expired
- Use
-
Try xcode build logs if available:
- Check
artifacts.xcodeBuildLogsUrl - Fetch and extract compilation errors
- Check
-
If all log URLs have expired, tell the user:
Log URLs have expired (15-minute TTL). View full logs at: <expo.dev link>
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago First seen · 126 lines · 36 tokens per session scan A a582a1c7c99d
eas-build-error is a skill published in the GitHub repository flurdy/agent-skills (7 stars, last pushed 6d ago), licensed MIT. It adds 36 tokens to every session and 1,028 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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