chain

A workflow tool for running several agent skills in a chosen sequence. A pipeline means that each step passes its result to the next step.

In plain words
What is it for?
Use it for sequences such as reviewing code, applying a fix, running tests, or exploring, refactoring, testing, and committing.
Why use it?
It keeps multi-step work ordered and can stop when a required step fails.

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/ozmasterai/torus-framework/chain
Any agent
npx skills add OZmasterAI/Torus-Framework --skill chain
Clone the repo
git clone --depth 1 https://github.com/OZmasterAI/Torus-Framework

Made for: Claude Code, Codex.

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 879 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 $0.00000 $0.00879
Opus 5 $0.00000 $0.00439
Sonnet 5 $0.00000 $0.00176
Haiku 4.5 $0.00000 $0.00088

Measured 2d ago against content hash 43c698d90a3b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

chain 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.

dormant/skills/standalone/chain/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/chain — Skill Composition Pipeline

When to use

When the user says "chain", "pipeline", "then", "sequence", "workflow", "run all", or wants to compose multiple skills into a sequential execution pipeline.

Examples:

  • /chain explore -> refactor -> test -> commit
  • /chain review -> fix -> test
  • /chain research -> build -> test -> deploy

Steps

1. PARSE CHAIN

  • Parse skill names from the chain string by splitting on -> or
  • Trim whitespace from each skill name, strip any leading / prefix
  • Validate each skill exists in ~/.claude/skill-library/ (check for SKILL.md)
  • If any skill is missing, report which ones and abort
  • Maximum chain length: 6 skills (reject longer chains with explanation)
  • Show execution plan to user:
    Chain: /skill_1 → /skill_2 → /skill_3
    Steps: 3 | Mode: stop-on-failure
    
  • Wait for user confirmation before starting

2. MEMORY CHECK

  • search_knowledge("chain execution") — find prior chain runs and lessons learned
  • search_knowledge("[first skill in chain]") — check for known issues with lead skill
  • Note any past chain failures or gotchas to watch for during execution

3. EXECUTE SEQUENTIALLY

For each skill in the chain (N = current, M = total):

Announce:

━━━ Step N/M: Running /skill_name ━━━

Execute:

  • Follow that skill's SKILL.md steps faithfully
  • Memory context flows naturally — each skill's remember_this calls are visible to subsequent skills via search_knowledge
  • SDK wrapping: Before each skill step, note the current tool_call_count and time. After each step completes, compute elapsed time and tool calls used for that step. (See hooks/shared/chain_sdk.py:ChainStepWrapper for the utility class.)

On failure (tests fail, errors, tool failures):

  • STOP the chain immediately
  • Show what failed and why
  • Ask the user:
    • Continue — skip this skill, proceed to the next one
    • Retry — re-run the current skill
    • Abort — stop the chain entirely

Read the full file on GitHub · 80 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 · 80 lines · 0 tokens per session scan A 43c698d90a3b

Subscribe to this mod's changes

chain is a skill published in the GitHub repository OZmasterAI/Torus-Framework (5 stars, last pushed 3mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 879 tokens. 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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