phase

phase is a skill for Claude Code from rana/skills. It costs 18 tokens per session (372 once invoked), scanned A, original, MIT.

A phase marker for a research workflow with five modes: generating ideas, exploring evidence, validating findings, implementing results, and reflecting on the work.

In plain words
What is it for?
Use it to declare or assess the current research phase, check its completion criteria, record what was learned, and identify what must happen before changing phases.
Why use it?
It makes the current kind of work explicit and prevents moving forward before the previous phase's exit conditions are met.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: built for gstack.

Part of the y plugin — 64 skills, 14 commands, 8 agents shipped together

Good fit Use it to declare or assess the current research phase, check its completion criteria, record what was learned, and identify what must happen before changing phases.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rana/skills/phase
View source ↗ rana/skills
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 rana/skills --skill phase
Clone the repo
git clone --depth 1 https://github.com/rana/skills

Made for: Claude Code.

Or install y, the plugin that ships this one along with the rest of its 64 skills, 14 commands, 8 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 phase

README.md
[![agentmods](https://agentmods.dev/badge/skills/rana/skills/phase/github.svg)](https://agentmods.dev/skills/rana/skills/phase)
Your own site
<a href="https://agentmods.dev/skills/rana/skills/phase"><img src="https://agentmods.dev/badge/skills/rana/skills/phase/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 phase

Your own site · 80×15
<a href="https://agentmods.dev/skills/rana/skills/phase"><img src="https://agentmods.dev/badge/skills/rana/skills/phase.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 372 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 $0.00018 $0.00372
Opus 5.5 $0.00007 $0.00149
Sonnet 5.5 $0.00004 $0.00074
Haiku 4.5 $0.00002 $0.00037

Measured 1mo ago against content hash ea079d8b6fcf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

phase 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 1mo 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.

skills/phase/SKILL.md · 46 lines

What it actually says

Phase System

Research follows a sprint structure inspired by gstack. Each phase has distinct cognitive modes and exit criteria.

Phases

Phase Mode Purpose Exit Criteria
DREAM Creative encounter Generate hypotheses without judgment 3+ hypotheses articulated
EXPLORE Breadth search Measure signals, map territory Profiles computed, territory mapped
VALIDATE Depth verification Statistical gates, falsification Walk-forward passes or finding recorded in RETURNED.md
IMPLEMENT Direct action Build what's validated Code merged, tests passing
REFLECT Meta-cognition Update findings, prune returned FINDINGS.md updated, session closed

Current Phase Declaration

Declare the phase: $ARGUMENTS

If no phase specified, assess current state and recommend next phase based on:

  • What's blocking (CONSTRUCTION-STATE.md)
  • What's validated (FINDINGS.md)
  • What's queued (RESEARCH.md)

Phase Transition Protocol

Before transitioning:

  1. Verify exit criteria of current phase are met
  2. Document what was learned in appropriate file
  3. Clear any blocking items or note them for next session

Output

  1. Current phase with timestamp
  2. Exit criteria for this phase instance
  3. Active question driving this phase
  4. Constraints (what's out of scope for this phase)
  5. Next phase (predicted, contingent on exit criteria)

Keep it short. The phase marker is a checkpoint, not a document.

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. 1mo ago First seen · 46 lines · 18 tokens per session scan A ea079d8b6fcf

Subscribe to this mod's changes

phase is a skill published in the GitHub repository rana/skills (1 stars, last pushed 6mo ago), licensed MIT. It adds 18 tokens to every session and 372 once invoked, about $0.0001 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 2026-09-03.

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