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OTP 28.3.1 management skill for Erlang/OTP installation, verification, and cleanup
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Based on SOC occupation classification
| name | otp-manager |
| version | 1.0.0 |
| description | OTP 28.3.1 management skill for Erlang/OTP installation, verification, and cleanup |
| author | erlmcp |
| commands | [{"name":"fetch-build","description":"Download and build OTP 28.3.1 from official sources","usage":"/otp-manager fetch-build"},{"name":"verify","description":"Check OTP version and compilation readiness","usage":"/otp-manager verify"},{"name":"clean","description":"Remove OTP build artifacts and cached files","usage":"/otp-manager clean"}] |
| preload | ["verifier","build-engineer"] |
| tags | ["otp","erlang","build","infrastructure"] |
Reusable skill for managing Erlang/OTP 28.3.1 in Claude Code Web environments.
Provides automated procedures for:
/otp-manager fetch-buildDownload and build OTP 28.3.1 from official Erlang Solutions packages.
Behavior:
Idempotency: Safe to run multiple times. Skips installation if OTP >= 28.3.1 already exists.
Error Handling:
Output:
✅ OTP 28.3.1 installed successfully
Version: 28.3.1
Location: /usr/lib/erlang
Time: 45s
Example:
/otp-manager fetch-build
# Downloads and installs OTP 28.3.1
# Returns: exit code 0 (success) | 1 (failure)
/otp-manager verifyCheck OTP version and verify compilation readiness.
IMPORTANT: Always source the environment file first to ensure OTP 28 is used:
source .erlmcp/env.sh
Behavior:
.erlmcp/env.sh (ensures OTP 28.3.1 in PATH)Checks Performed:
Output:
✅ OTP verification passed
Installed: 28.3.1
Required: 28.3.1
rebar3: 3.24.0
Status: READY
Exit Codes:
Example:
/otp-manager verify
# Sources .erlmcp/env.sh, checks OTP version and compilation readiness
# Returns: exit code 0-3 (see above)
/otp-manager cleanRemove OTP build artifacts and cached files.
Behavior:
/tmp/erlmcp-build/.erlmcp/cache/Safety:
Output:
✅ OTP cleanup complete
Removed: 123 MB build artifacts
Cleared: 45 MB apt cache
Preserved: OTP 28.3.1 installation
Example:
/otp-manager clean
# Removes build artifacts and cache
# Returns: exit code 0 (success)
This skill can be preloaded into subagents for autonomous OTP management:
Verifier Subagent (.claude/agents/verifier.md):
preload_skills:
- otp-manager
Build Engineer Subagent (.claude/agents/build-engineer.md):
preload_skills:
- otp-manager
Once preloaded, subagents can invoke OTP manager commands autonomously:
# Verifier checks OTP before running tests
/otp-manager verify
if [ $? -eq 0 ]; then
rebar3 eunit
fi
# Build engineer fetches OTP if missing
/otp-manager verify || /otp-manager fetch-build
The skill implements robust error recovery:
| Error Class | Recovery Strategy |
|---|---|
| Network timeout | Retry 3x with exponential backoff (1s, 2s, 4s) |
| Package conflict | Clear apt cache and retry |
| Permission denied | Report to user (requires sudo) |
| Version mismatch | Report installed vs required version |
| Disk space | Report error (requires user intervention) |
Example: Network Timeout Recovery
⚠️ Network timeout downloading erlang-solutions package
🔄 Retry 1/3 (delay: 1s)...
⚠️ Network timeout downloading erlang-solutions package
🔄 Retry 2/3 (delay: 2s)...
✅ Download successful
otp_fetch_build.sh (120 lines):
otp_verify.sh (50 lines):
otp_clean.sh (30 lines):
.erlmcp/otp-manager.logTest suite location: test/otp_manager_skill_tests.erl
Test Coverage:
Running Tests:
rebar3 eunit --module=otp_manager_skill_tests
Expected output:
Testing otp_manager_skill_tests
All 6 tests passed.
.claude/hooks/SessionStart.sh - Uses fetch-build logic on session start.claude/agents/verifier.md - Preloads this skill for OTP verification.claude/agents/build-engineer.md - Preloads this skill for OTP management.claude/settings.json - References otp-manager in skill registry