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.
npx skills add autohandai/community-skills --skill cobol-o-maticgit clone --depth 1 https://github.com/autohandai/community-skillsWrote 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.
[](https://agentmods.dev/skills/autohandai/community-skills/cobol-o-matic)<a href="https://agentmods.dev/skills/autohandai/community-skills/cobol-o-matic"><img src="https://agentmods.dev/badge/skills/autohandai/community-skills/cobol-o-matic/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.
<a href="https://agentmods.dev/skills/autohandai/community-skills/cobol-o-matic"><img src="https://agentmods.dev/badge/skills/autohandai/community-skills/cobol-o-matic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00030 | $0.00414 |
| Opus 5 | $0.00015 | $0.00207 |
| Sonnet 5 | $0.00006 | $0.00083 |
| Haiku 4.5 | $0.00003 | $0.00041 |
Grade A, and why
cobol-o-matic 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.
What it actually says
cobol-o-matic
Overview
Use this skill when a legacy COBOL codebase needs to be understood before a rewrite, migration, or documentation effort. The upstream project, dsheard/cobol-o-matic, focuses on reverse-engineering COBOL applications into requirements, business rules, and dependency graphs using agentic analysis.
Compatibility: COBOL, Claude Agent SDK, and legacy modernization assessments.
Workflow
- Inventory the COBOL entry points, copybooks, JCL, file layouts, screens, batch jobs, and external integrations.
- Run a read-only analysis first. Treat generated requirements and rules as hypotheses until they are reconciled against source code and production SMEs.
- Extract business logic by program, paragraph, data structure, condition, file operation, and job step.
- Build dependency maps that separate call relationships, data dependencies, batch sequencing, and external system touchpoints.
- Produce migration-ready artifacts: glossary, business-rule catalog, interface inventory, data lineage notes, and test scenarios.
Guardrails
- Preserve original COBOL semantics, especially packed decimal fields, implied decimals, EBCDIC assumptions, record layouts, and batch restart behavior.
- Do not treat AI-generated requirements as authoritative without source-line evidence.
- Keep modernization recommendations separate from reverse-engineering findings so stakeholders can review factual discovery independently from proposed changes.
- Link every extracted business rule back to source files, paragraphs, or data definitions.
Expected Output
Return a concise modernization discovery pack with the source inventory, extracted rules, dependency graph summary, open questions, and recommended next analysis steps.
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.
- 9d ago First seen · 37 lines · 30 tokens per session scan A d9f1736ac056
cobol-o-matic is a skill published in the GitHub repository autohandai/community-skills (11 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 30 tokens to every session and 414 once invoked, about $0.0002 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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