simplicio-review

A review process for checking a code branch from several independent angles before it is merged. A branch is a separate line of development containing proposed changes.

In plain words
What is it for?
Use it to review any branch before merging, with separate checks for security and correctness, code quality, and whether the reported behavior can be reproduced.
Why use it?
It helps uncover security, correctness, code-quality, and reproducibility problems that a single review may miss.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/wesleysimplicio/simplicio-loop/simplicio-review
Any agent
npx skills add wesleysimplicio/simplicio-loop --skill simplicio-review
Clone the repo
git clone --depth 1 https://github.com/wesleysimplicio/simplicio-loop

Made for: Claude Code, Codex.

Per session 144 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,503 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00144 $0.01503
Opus 5 $0.00072 $0.00751
Sonnet 5 $0.00029 $0.00301
Haiku 4.5 $0.00014 $0.00150

Measured 2d ago against content hash 55181a9a6660, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

simplicio-review 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 2d 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/skills/simplicio-review/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

simplicio-review — thermo-nuclear adversarial review

A single reviewer rubber-stamps; independent reviewers refute. This skill runs the simplicio-tasks Step 4c adversarial-verify gate as a standalone, reusable review: it fans out parallel subagents on DISTINCT rubrics, each prompted to REFUTE, then synthesizes a single deduped verdict.

Credit: distilled from cursor thermos (parallel background subagents, separate security vs code-quality rubrics, dedup-on-synthesis) wired into the simplicio evidence spine.

When to use

  • Before merging ANY item, TRIVIAL through CRITICAL (the Step 4c gate) — simplicio-tasks' 6-agent floor (Step 3) has no solo/self-review path left; this fan-out is 3 of those 6 roles, always.
  • "review this branch hard", "thermo-nuclear", "find what's wrong before I merge".

Step 1 — Gather context ONCE (parent)

Collect, in the parent, so subagents don't each re-derive it:

git diff <base>...HEAD            # the change set (clamp via simplicio-orient: stat + hunks)
git diff --name-only <base>...HEAD
# full contents of each changed file (signatures-only for unchanged neighbors)
# the item body + acceptance criteria (simplicio-tasks Step 2b-1)
# the run-verification evidence (Step 4b) + any existing PR review threads / bot comments

Scope is added/modified lines only. Pre-existing issues outside the diff are out of scope unless the change makes them reachable.

Step 2 — Fan out parallel reviewers (one message, background)

Spawn 3 INDEPENDENT subagents IN A SINGLE MESSAGE (so they run concurrently — wall-clock down, no proportional token blow-up). Each gets the SAME context bundle and a DISTINCT rubric:

Rubric A — security & correctness

  • Real bugs in changed lines: logic errors, off-by-one, null/None, race, resource leak.
  • Breaking changes: changed signatures/behavior that break existing callers (grep the callers).
  • Security: injection, secret in diff, authz gap, unsafe deserialization, SSRF, path traversal.
  • Acceptance criteria: find any AC NOT met. Find any fake/placeholder return (Ok(fake)/return None/stubbed success where behavior was required).
  • Feature-flag / debug leaks: left-on flags, commented-out guards, console.log/dbg!.

Read the full file on GitHub · 105 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. 2d ago First seen · 105 lines · 144 tokens per session scan A 55181a9a6660

Subscribe to this mod's changes

simplicio-review is a skill published in the GitHub repository wesleysimplicio/simplicio-loop (2 stars, last pushed 3d ago), licensed MIT. It adds 144 tokens to every session and 1,503 once invoked, about $0.0007 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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