What is ess-gh-copilot-review?

A workflow that asks the GitHub Copilot command-line tool to review the current Git branch. It can compare the whole branch with the default branch or inspect only a selected range of commits, which are saved steps in the project's history.

Use it to review a branch, review changes since a chosen revision or the last review, reset the review marker, or select a specific comparison base.

It avoids manually constructing comparison ranges and provides a repeatable way to request a Copilot review. It can also limit a review to changes made since the previous successful review.

ess-gh-copilot-review — Skill for Claude Code and Codex by CiscoDevNet

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.

Any agent

npx skills add CiscoDevNet/essentials --skill ess-gh-copilot-review

Clone the repo

git clone --depth 1 https://github.com/CiscoDevNet/essentials

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ciscodevnet/essentials/ess-gh-copilot-review/github.svg)](https://agentmods.dev/skills/ciscodevnet/essentials/ess-gh-copilot-review)

Your own site

<a href="https://agentmods.dev/skills/ciscodevnet/essentials/ess-gh-copilot-review"><img src="https://agentmods.dev/badge/skills/ciscodevnet/essentials/ess-gh-copilot-review/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ciscodevnet/essentials/ess-gh-copilot-review"><img src="https://agentmods.dev/badge/skills/ciscodevnet/essentials/ess-gh-copilot-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 921 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.

Model	Per session	Once invoked
Fable 5.1	$0.00085	$0.00921
Opus 5.5	$0.00034	$0.00368
Sonnet 5.5	$0.00017	$0.00184
Haiku 4.5	$0.00009	$0.00092

Measured 2d ago against content hash 9863dd4e8ced, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ess-gh-copilot-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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/review-pr.sh, scripts/test_review_pr.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/ess/ess-gh-copilot-review/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review a Branch with GitHub Copilot CLI

Review the current branch against the remote's default branch using GitHub Copilot CLI.

Usage

Pass at most one scope option to the review script:

Option	Reviews
(none)	The whole branch against the remote's default branch
`--since-last`	Only changes since the last successful review on this branch
`--since <rev>`	Changes from `<rev>` to `HEAD`, e.g. `--since HEAD~1`
`--range <range>`	An explicit range, e.g. `--range HEAD~3..HEAD`
`--reset-last`	The whole branch, after clearing the last-reviewed marker

--since and --range need no remote fetch.

The remote is origin, or the only remote when there is no origin. Its default branch comes from refs/remotes/<remote>/HEAD (set by git clone), falling back to main, then master. Pass --base <ref> (e.g. --base upstream/develop) when there are several remotes and none is origin, or the base is some other branch. --base applies to the whole-branch review, including --since-last without a marker.

Prerequisites

GitHub Copilot CLI installed (copilot on $PATH). See Getting started with GitHub Copilot CLI for install instructions.

Instructions

Run the bundled review script from inside the repository to review, outside any agent sandbox. Copilot CLI spawns subprocesses that need PTY access, which sandboxes block. SKILL_DIR is the absolute path of the directory that contains this SKILL.md; the script reviews whichever repo the current directory is in.

bash "$SKILL_DIR/scripts/review-pr.sh" [option]

The script runs copilot -p ... --allow-all (non-interactive, all tools auto-approved) so no manual confirmation is needed. Only use this in trusted repositories -- --allow-all permits Copilot to run shell commands and modify files without confirmation.

This will:

Verify Copilot CLI is installed (exits with install instructions if not).
Fetch the remote (only for the whole-branch review) and show a diff stat for the selected range.
Run a non-interactive Copilot CLI review that checks for correctness issues, edge cases, security concerns, missing tests, performance problems, and maintainability issues.

Read the full file on GitHub · 87 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2d ago First seen · 87 lines · 85 tokens per session scan A 9863dd4e8ced

Subscribe to this mod's changes

ess-gh-copilot-review is a skill published in the GitHub repository CiscoDevNet/essentials (7 stars, last pushed 3d ago), licensed Apache-2.0. It adds 85 tokens to every session and 921 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-11-04.

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ess-gh-copilot-review next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ess-gh-copilot-reviewCiscoDevNet/essentials	Skill	7	3d ago	Apache-2.0	A	85	Claude Code, Codex
triage-contributor-prprisma/orm	Skill	48k	today	Apache-2.0	A	131	Claude Code
review-implement-phaseprisma/orm	Skill	48k	today	Apache-2.0	A	38	Claude Code
review-triage-phaseprisma/orm	Skill	48k	today	Apache-2.0	A	36	Claude Code
compiler-commitreact/react	Skill	252k	today	MIT	A	42	Claude Code
reviewvercel/eve	Skill	5.8k	today	Apache-2.0	A	31	Claude Code, Codex
hero-diff-highlightUnclecheng-li/AI_Animation	Skill	1.7k	12d ago	MIT	A	0	Claude Code, Codex