mainframe-removal skillA
mainframe-removal is agent-read markdown (skill) from openhands/extensions: Apply mainframe dependency transformations to COBOL code using a pre-generated transformation guide. Converts CICS/VSAM constructs to standard COBOL..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
Apply the transformations from a transformation guide to convert mainframe-specific COBOL to standard COBOL. **Prerequisite**: A transformation guide must exist (see `cobol-mainframe-planning` skill). ## Transformation Requirements ### Data Operations - Replace each CICS/VSAM construct with its standard COBOL equivalent per the plan - Add FILE STATUS checks after EVERY file operation: - Check for success (00) before proceeding - Handle "not found" (23) distinctly from I/O errors (3x) - Handle "file not exists" (35) at OPEN time - Add explicit CLOSE statements in all code paths (including error paths) ### UI/Terminal Operations (BMS maps, SEND/RECEIVE) - Replace with simple stubs or ACCEPT/DISPLAY statements - Do NOT spend time replicating screen layouts - Focus on preserving data flow, not UI fidelity ### Error Handling - Replace CICS RESP/RESP2 checks with equivalent FILE STATUS logic - Replace HANDLE CONDITION with explicit status checking after operations - Ensure error paths don't leave files open See [references/cics-transformation-examples.md](references/cics-transformation-examples.md) for before/after code examples. ## Verification After transformation: …
Read the whole file at its exact version.
How to install
mdr add openhands/extensions/mainframe-removal@git:20260621.c72f462mdr add openhands/extensions/mainframe-removal@sha256:bf0c95e28074dd27Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_6btgqtllxce4dw7b)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2082 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
openhands/extensions · 150 stars · license MIT · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6btgqtllxce4dw7b GET https://markdownregistry.com/api/v1/resolve?ref=openhands/extensions/mainframe-removal GET https://markdownregistry.com/api/v1/blob/bf0c95e28074dd27c4c2facb31783ef079e9dcb551eec8f84a554e845556f2f3
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