atlas-toolkit-discovery

atlas-toolkit-discovery is a skill for Claude Code, Codex from autohandai/community-skills. It costs 23 tokens per session (369 once invoked), scanned A, original, Apache-2.0.

A discovery guide for COBOL estates, meaning older business systems and programs often running on mainframes. It inventories their parts and rates whether they are ready for modernization.

In plain words
What is it for?
Use it to catalogue COBOL programs, copybooks, jobs, data, tests, and integrations, then classify each component as ready, conditional, deferred, or unsuitable for modernization.
Why use it?
It prevents teams from starting a conversion without knowing the system's dependencies, missing files, test coverage, business importance, or operational risks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to catalogue COBOL programs, copybooks, jobs, data, tests, and integrations, then classify each component as ready, conditional, deferred, or unsuitable for modernization.

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Install with agentmods
npx agentmods add skills/autohandai/community-skills/atlas-toolkit-discovery
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 autohandai/community-skills --skill atlas-toolkit-discovery
Clone the repo
git clone --depth 1 https://github.com/autohandai/community-skills

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.

agentmods badge for atlas-toolkit-discovery

README.md
[![agentmods](https://agentmods.dev/badge/skills/autohandai/community-skills/atlas-toolkit-discovery/github.svg)](https://agentmods.dev/skills/autohandai/community-skills/atlas-toolkit-discovery)
Your own site
<a href="https://agentmods.dev/skills/autohandai/community-skills/atlas-toolkit-discovery"><img src="https://agentmods.dev/badge/skills/autohandai/community-skills/atlas-toolkit-discovery/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 atlas-toolkit-discovery

Your own site · 80×15
<a href="https://agentmods.dev/skills/autohandai/community-skills/atlas-toolkit-discovery"><img src="https://agentmods.dev/badge/skills/autohandai/community-skills/atlas-toolkit-discovery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 369 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 $0.00023 $0.00369
Opus 5 $0.00012 $0.00185
Sonnet 5 $0.00005 $0.00074
Haiku 4.5 $0.00002 $0.00037

Measured 9d ago against content hash f1b90755cfc5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

atlas-toolkit-discovery 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 9d 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.

atlas-toolkit-discovery/SKILL.md · 37 lines

What it actually says

ATLAS Toolkit Discovery

Overview

Use this skill during the discovery phase of COBOL modernization, before conversion work begins. The upstream repository, Vivantro/atlas-toolkit-discovery, is a sample skill for COBOL legacy inventory and go/no-go classification.

Compatibility: COBOL, legacy inventory, and modernization readiness assessment.

Workflow

  1. Collect source inventory: COBOL programs, copybooks, JCL, control cards, data definitions, test assets, and deployment notes.
  2. Build a dependency index covering calls, copybook inclusion, file usage, database access, schedules, and external systems.
  3. Score readiness by complexity, missing assets, test coverage, business criticality, operational risk, and SME availability.
  4. Classify each application or component as go, conditional go, defer, or no-go for modernization.
  5. Recommend the next step: deeper reverse engineering, wrapper strategy, data remediation, test-data recovery, or migration execution.

Guardrails

  • Do not start conversion until discovery has identified required copybooks, sample data, and integration dependencies.
  • Keep readiness scoring evidence-based and include confidence levels.
  • Separate technical complexity from business priority so decision makers can trade risk against value explicitly.
  • Preserve unknowns as named risks rather than filling gaps with assumptions.

Expected Output

Produce an inventory table, dependency summary, readiness classification, risk register, and recommended modernization sequence.

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. 9d ago First seen · 37 lines · 23 tokens per session scan A f1b90755cfc5

Subscribe to this mod's changes

atlas-toolkit-discovery is a skill published in the GitHub repository autohandai/community-skills (11 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 23 tokens to every session and 369 once invoked, about $0.0001 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 2026-09-03.

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