Claude-Pipeline: Command for Claude Code

.claude/commands/pre-check.md

pre-check is a command for Claude Code from TheAstrelo/Claude-Pipeline. It costs 0 tokens per session (439 once invoked), scanned A, original, MIT.

A command that checks a proposed coding task against the existing codebase, dependencies, and limited web research. It produces a recommendation about whether to extend existing code, use a library, or build something new.

In plain words
What is it for?
Use it before starting features such as authentication, payments, exports, or other changes where similar code or libraries may already exist.
Why use it?
It reduces guesswork before implementation by finding related code and packages first. It also gives the recommendation a confidence score and written evidence.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

This is TheAstrelo/Claude-Pipeline's own configuration. It tells Claude Code how to work on Claude-Pipeline itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Claude-Pipeline configures →

Reuse

Borrowing it

Nothing to install: this file belongs to TheAstrelo/Claude-Pipeline. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/TheAstrelo/Claude-Pipeline/main/.claude/commands/pre-check.md
Clone the repo
git clone --depth 1 https://github.com/TheAstrelo/Claude-Pipeline

Made for: Claude Code.

Wrote 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.

agentmods badge for pre-check

README.md
[![agentmods](https://agentmods.dev/badge/commands/theastrelo/claude-pipeline/pre-check/github.svg)](https://agentmods.dev/commands/theastrelo/claude-pipeline/pre-check)
Your own site
<a href="https://agentmods.dev/commands/theastrelo/claude-pipeline/pre-check"><img src="https://agentmods.dev/badge/commands/theastrelo/claude-pipeline/pre-check/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for pre-check

Your own site · 80×15
<a href="https://agentmods.dev/commands/theastrelo/claude-pipeline/pre-check"><img src="https://agentmods.dev/badge/commands/theastrelo/claude-pipeline/pre-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 439 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00439
Opus 5 $0.00000 $0.00219
Sonnet 5 $0.00000 $0.00088
Haiku 4.5 $0.00000 $0.00044

Measured 9d ago against content hash 2585a3d296d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pre-check 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 9d 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.

.claude/commands/pre-check.md · 94 lines

What it actually says

Pre-Check

Run: /pre-check <task>

$ARGUMENTS


Use the pre-check agent.

Process

  1. Extract keywords from task

    • Feature name (auth, payments, export)
    • Entity name (user, order, report)
    • Action verb (login, sync, generate)
  2. Search codebase

    # Check each configured dir
    for dir in src/pages/api src/features src/lib src/domain; do
      grep -r "KEYWORD" "$dir" --include="*.ts" --include="*.tsx" | head -5
    done
    
    # Find similar files
    glob "src/**/*KEYWORD*.{ts,tsx}"
    
  3. Check dependencies

    grep -i "KEYWORD" package.json
    
  4. Web search (if no local match)

    • Max 3 searches
    • Query: "[keyword] [framework] library"
  5. Output recommendation


Output

Write to session pre-check.md:

# Pre-Check: [Task]

## Confidence: [0-100]

## Codebase Matches

| Path | Match | Relevance |
|------|-------|-----------|
| src/pages/api/auth/login.ts | login handler | HIGH |

## Dependencies

| Package | Relevance |
|---------|-----------|
| next-auth | HIGH - auth framework |

## External Options

| Option | Fit |
|--------|-----|
| clerk | Good - managed auth |

## Recommendation: [EXTEND_EXISTING | USE_LIBRARY | BUILD_NEW]

**Reasoning:** [1 sentence]

**Next step:** [What to pass to Phase 1]

Decision Logic

IF high_relevance_match in codebase:
  → EXTEND_EXISTING
ELSE IF suitable_library in package.json OR popular_library found:
  → USE_LIBRARY
ELSE:
  → BUILD_NEW

Tip

Run this before any "make me a..." request to avoid duplicate work.

Changes

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.

  1. 9d ago First seen · 94 lines · 0 tokens per session scan A 2585a3d296d8

Subscribe to this mod's changes

pre-check is a command published in the GitHub repository TheAstrelo/Claude-Pipeline (45 stars, last pushed 5d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 439 tokens. 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 2026-08-30.