phoenix-scope-cutter

phoenix-scope-cutter is a skill for Claude Code from Security-Phoenix-demo/security-skills-claude-code. It costs 135 tokens per session (894 once invoked), scanned A, original, MIT.

A scope-definition step that turns cleaned project information into explicit goals, non-goals, boundaries, assumptions, success measures, and open decisions.

In plain words
What is it for?
Use it to define what belongs in a Phoenix Security feature before writing constraints or detailed requirements.
Why use it?
It prevents feature work from expanding beyond what the team agreed to build, especially when the team and delivery capacity are limited.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the phoenix-prd-pipeline plugin — 13 skills shipped together

Good fit Use it to define what belongs in a Phoenix Security feature before writing constraints or detailed requirements.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/security-phoenix-demo/security-skills-claude-code/phoenix-scope-cutter
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 Security-Phoenix-demo/security-skills-claude-code --skill phoenix-scope-cutter
Clone the repo
git clone --depth 1 https://github.com/Security-Phoenix-demo/security-skills-claude-code

Made for: Claude Code.

Or install phoenix-prd-pipeline, the plugin that ships this one along with the rest of its 13 skills.

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 phoenix-scope-cutter

README.md
[![agentmods](https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/phoenix-scope-cutter/github.svg)](https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/phoenix-scope-cutter)
Your own site
<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/phoenix-scope-cutter"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/phoenix-scope-cutter/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 phoenix-scope-cutter

Your own site · 80×15
<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/phoenix-scope-cutter"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/phoenix-scope-cutter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 135 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 894 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 $0.00135 $0.00894
Opus 5 $0.00068 $0.00447
Sonnet 5 $0.00027 $0.00179
Haiku 4.5 $0.00014 $0.00089

Measured yesterday against content hash fc75b85e1751, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

phoenix-scope-cutter 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 yesterday.

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.

plugins/phoenix-prd-pipeline/skills/phoenix-scope-cutter/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Phoenix Security — Scope Cutter (Role 02)

Token Budget: ≤800 tokens Depends On: Role 01 — CLEAN_CONTEXT Feeds Into: Role 03 — Constraint Distiller Output: 02-scope-definition.md


Phoenix Scope Anchors

Every goal MUST map to at least one Phoenix product pillar:

Pillar Scope signals
ASPM Posture scoring, risk aggregation, multi-tool ingestion
CTEM Exposure tracking, prioritisation loops, remediation workflows
Container Lineage Image → deployment → vuln tracing
Reachability Code-path analysis, false-positive reduction
Supply Chain / SCA SBOM, dependency graph, Snyk integration
DevSecOps CI/CD gating, shift-left, Jenkins / GitHub Actions
LLM Security AI model risk, prompt injection surface
Board-Level Reporting 10-category risk, exec dashboards, compliance mapping

Team Constraint

12-person team. Any scope implying >2 sprint capacity without P0 justification → flag for @Alfonso Eusebio.

Success Metric Benchmarks

  • Vuln reduction: ClearBank 98%, Bazaarvoice 94%
  • False positive reduction: IAS 78%
  • Cost savings: ClearBank $15M, Bazaarvoice $6.3M, IAS $1.7M+
  • Rule auto-mapping: Bazaarvoice 32K via Backstage

Core Rules

  1. Do not invent features, integrations, policies, or architecture.
  2. Every NON_GOAL must be explicit — silence is not a boundary.
  3. Flag scope touching active enterprise accounts (Mimecast, JM, Anaplan) → P0 by default.
  4. Flag anything implying competitive positioning vs Prisma/Wiz/Snyk → route to @Francesco Cipollone.
  5. If GOALS cannot be stated from input, output only SCOPE_OPEN_QUESTIONS.

Output Schema

---
meta:
  role: 02-scope-cutter
  timestamp: [ISO 8601]
  session_id: session-[YYYYMMDD-HHMMSS]
  token_count: [actual]
  status: complete | blocked | needs-input
  validation: passed | failed
  next_role: 03-constraint-distiller
---

### SCOPE_DEFINITION

#### GOALS (max 6)
- G1: ... (pillar: ASPM|CTEM|Container Lineage|Reachability|SCA|DevSecOps|LLM|Reporting)

#### NON_GOALS (max 6)
- NG1: ...

#### IN_SCOPE (max 10)
- IS1: ...

#### OUT_OF_SCOPE (max 10)
- OS1: ...

#### ASSUMPTIONS (max 6; map to FACT/DECISION IDs)
- A1: ... (based_on: F? / D?)

#### SUCCESS_METRICS (max 5; quantified where possible)
- SM1: ... (benchmark: ClearBank|Bazaarvoice|IAS|new)

#### SCOPE_OPEN_QUESTIONS (max 7; blockers only)
- SQ1: ...

#### ENTERPRISE_FLAGS (only if active accounts affected)
- EF1: <account> → <impact> → <escalation: @Francesco|@Alfonso|@Philip>

Read the full file on GitHub · 104 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. yesterday First seen · 104 lines · 135 tokens per session scan A fc75b85e1751

Subscribe to this mod's changes

phoenix-scope-cutter is a skill published in the GitHub repository Security-Phoenix-demo/security-skills-claude-code (70 stars, last pushed yesterday), licensed MIT. It adds 135 tokens to every session and 894 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 2026-09-11.

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