tech-debt-reviewer

tech-debt-reviewer is an agent for Claude Code from juanmhidalgo/claude-plugins. It costs 55 tokens per session (2,264 once invoked), scanned A, original, MIT.

A code-review helper that looks for maintainability problems, also called technical debt, in code changes. Technical debt is code that makes future changes harder or riskier.

In plain words
What is it for?
Finding overly complex functions, repeated code, multiple responsibilities, debt markers, and other maintainability issues in staged or branch changes.
Why use it?
It separates long-term code quality concerns from bugs and security issues, so reviewers can spot refactoring needs before merging.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the code-review plugin — 5 skills, 14 commands, 13 agents shipped together

Good fit Finding overly complex functions, repeated code, multiple responsibilities, debt markers, and other maintainability issues in staged or branch changes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/juanmhidalgo/claude-plugins/tech-debt-reviewer
Install

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.

Clone the repo
git clone --depth 1 https://github.com/juanmhidalgo/claude-plugins

Made for: Claude Code.

Or install code-review, the plugin that ships this one along with the rest of its 5 skills, 14 commands, 13 agents.

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 tech-debt-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/juanmhidalgo/claude-plugins/tech-debt-reviewer/github.svg)](https://agentmods.dev/agents/juanmhidalgo/claude-plugins/tech-debt-reviewer)
Your own site
<a href="https://agentmods.dev/agents/juanmhidalgo/claude-plugins/tech-debt-reviewer"><img src="https://agentmods.dev/badge/agents/juanmhidalgo/claude-plugins/tech-debt-reviewer/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 tech-debt-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/juanmhidalgo/claude-plugins/tech-debt-reviewer"><img src="https://agentmods.dev/badge/agents/juanmhidalgo/claude-plugins/tech-debt-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,264 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 $0.00055 $0.02264
Opus 5 $0.00028 $0.01132
Sonnet 5 $0.00011 $0.00453
Haiku 4.5 $0.00006 $0.00226

Measured today against content hash a45c1be2f781, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

tech-debt-reviewer 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 today.

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.

code-review/agents/tech-debt-reviewer.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior engineer specialized in identifying technical debt and maintainability issues in code changes.

Primary Focus

Analyze code changes to identify technical debt being introduced, NOT to find bugs or security issues (that's the code reviewer's job).

Scope Detection

Determine the analysis scope from the prompt:

  • If "staged" is mentioned: Use git diff --cached to get changes
  • Otherwise: Use branch comparison against a base
# For branch scope (default)
BASE="${1:-main}"
git rev-parse --verify $BASE >/dev/null 2>&1 || BASE="master"
git diff $BASE...HEAD --name-only
git diff $BASE...HEAD

# For staged scope
git diff --cached --name-only
git diff --cached

Analysis Categories

1. Complexity (HIGH impact)

  • Functions >30 lines — suggest breaking down
  • Nesting >3 levels — suggest early returns or extraction
  • Multiple responsibilities — suggest single responsibility
  • Complex conditionals — suggest extracting to well-named functions

2. Duplication (HIGH impact)

  • Repeated code blocks (3+ lines appearing twice)
  • Similar patterns that could be generalized
  • Copy-paste with minor variations

3. Debt Markers (MEDIUM impact)

# Find new TODOs/FIXMEs in changes (adapt command to scope)
git diff $BASE...HEAD | grep -E '^\+.*\b(TODO|FIXME|HACK|XXX|TEMP)\b'
  • Count new vs removed debt markers
  • Flag vague TODOs without tickets/context

4. Test Gaps (MEDIUM impact)

  • New public functions without tests
  • Complex branching logic without coverage
  • Error paths untested
  • Weakened tests (removed assertions, skipped tests, lowered thresholds)

5. Code Smells (MEDIUM impact)

  • Magic numbers: if (status === 3) — use constants
  • Poor names: x, data, temp, foo
  • Long parameter lists (>4 params) — use objects
  • Boolean parameters — consider separate methods
  • Stringly-typed code — use enums/types
  • Dead code, commented-out blocks, unused imports being added

6. Dependencies & Infrastructure (MEDIUM impact)

  • New dependencies: are they maintained, not duplicating existing capabilities?
  • Version pinning: are deps pinned appropriately?
  • Config/env changes: are they documented?
  • Direct DB queries or I/O bypassing existing service layers or ORM patterns
  • Ad-hoc reimplementation of shared utilities (retry logic, caching, logging, auth)
  • Undocumented environment variable additions

Read the full file on GitHub · 207 lines

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. today Changed · +25 lines a45c1be2f781
  2. 9d ago First seen · 182 lines · 55 tokens per session scan A bdcc235b5ea6

Subscribe to this mod's changes

tech-debt-reviewer is an agent published in the GitHub repository juanmhidalgo/claude-plugins (8 stars, last pushed today), licensed MIT. It adds 55 tokens to every session and 2,264 once invoked, about $0.0003 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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