Skills for Real Engineers. Straight from my .agents directory.
code
Agent skill fromjeremylongshore/tons-of-skills-marketplace
Use BEFORE generating, refactoring, reviewing, or debugging code. Trigger phrases include "write a function/script/class for X", "review this code/diff/PR", "refactor this", "debug this error", "is this implementation correct", "what's wrong with this code", "improve this code", "translate from X to Y", or any prompt with a code block the user wants you to act on. Also fires when planning architectural changes, picking algorithms or data structures, or evaluating dependency upgrades. Calls the code MCP tool to retrieve an engineering scaffold (failure pattern, procedure, correct-pattern example, verification step) before generating. Catches hallucinated APIs, lost edge cases, premature algorithm commitment, silent contract violations, refactors that change behavior masked by passing tests. Do NOT trigger for pure code reading with no action requested, simple syntax questions, file system operations, running existing tests, or confirming an existing pattern is fine.
How to install code
npx skills add jeremylongshore/tons-of-skills-marketplace# or add only this skill to Claude Code: copy the folder
plugins/community/ejentum-code/
# into
~/.claude/skills/ejentum-code/ (all projects)
.claude/skills/ejentum-code/ (one project)
1# Code Harness23When this skill triggers, call the `code` tool from the `ejentum` MCP server. Pass a 1-2 sentence framing of WHAT you are coding or reviewing as the `query` argument. Include the failure risk to avoid where possible.45Good query: `review a Python refactor that converts raise UserNotFound to silent default return; tests still pass`6Bad query: `look at this code`78The tool returns a structured scaffold containing:910- `[CODE FAILURE]`: engineering failure pattern to avoid11- `[ENGINEERING PROCEDURE]`: steps to follow12- `[REASONING TOPOLOGY]`: decision flow13- `[CORRECT PATTERN]`: shape correct code should take14- `[VERIFICATION]`: self-check15- `Amplify:` and `Suppress:` signals1617Absorb internally. Do NOT echo bracket labels in the user-facing reply. Apply the scaffold's failure-pattern check against your draft before responding; if your code exhibits the named failure, rewrite.1819If the API is unreachable, proceed with native engineering. The scaffold enhances; it is not a hard dependency.2021Latency cost: ~1 second. Benefit: catches the kinds of behavioral changes and silent contract violations that look plausible but break under real conditions.
Excerpt shown under the repository's MIT license.
More skills in tons-of-skills-marketplace
Similar skill repositories
An agentic skills framework & software development methodology that works.
A single CLAUDE.md file to improve Claude Code behavior, derived from Andrej Karpathy's observations on LLM coding pitfalls.
Public repository for Agent Skills
Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.
Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More
