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GnuCOBOL toolchain pointers for mainframe-style batch programs (LINE/RECORD SEQUENTIAL files, PIC clauses, cobc build flags).
デフォルトでは、最初にソースを確認する Prompt が選択されています。直接コマンドに切り替えるか、ローカルコピーをダウンロードすることもできます。
インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
直接コマンドでは確認用 Prompt が省略されます。実行前にソースを確認してください。
npx skills add https://github.com/benchflow-ai/skillsbench --skill gnucobol-mainframe-batchコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
ローカルで確認しますか？SkillsMP が現在取得できるファイルをダウンロードできます。
SkillsBench contribution workflow. Use when: (1) Creating benchmark tasks, (2) Understanding repo structure, (3) Preparing PRs for task submission.
SkillsBench task authoring — walk a contributor from idea to submission-ready task following CONTRIBUTING.md and the task-implementation rubric. Use when the user wants to create a new SkillsBench task, scaffold a task from an existing workflow (notebook, Excel workbook, document, dataset), convert a prompt or a benchmark item into a SkillsBench task, write skills for a task, or prepare a SkillsBench PR. Pairs with `task-review` (run that as a self-check before submitting).
SkillsBench task PR review — classifies the task track (standard / research / multimodal), runs static policy checks against the track-specific rubric, benchmarks the task across oracle plus Claude and Codex (with and without skills), audits trajectories for cheating and skill invocation, and produces a `pr-N-task-timestamp-run.txt` review report alongside a `prN.zip` bundle of trajectories. Use when reviewing a SkillsBench task PR (by number, branch, or local task path), when the user asks to review a task, run benchmarks on a PR, audit a submission, classify a task as research or multimodal track, or prepare a comment to post on a SkillsBench PR.
SKILL.md を表示中
SOC 職業分類に基づく
| name | gnucobol-mainframe-batch |
| description | GnuCOBOL toolchain pointers for mainframe-style batch programs (LINE/RECORD SEQUENTIAL files, PIC clauses, cobc build flags). |
cobc -x -free -o prog PROG.cbl
./prog
-free allows *> comments and free-form source. File names in SELECT
are resolved relative to the program's run directory.
SELECT DETAIL-FILE ASSIGN TO "TRAN.DAT"
ORGANIZATION IS SEQUENTIAL.
For 80-byte fixed-record tapes use ORGANIZATION IS SEQUENTIAL with
RECORD CONTAINS 80 CHARACTERS in the FD. Pad WRITE records to the
required length (e.g. MOVE SPACES TO BAL-REC before populating fields).
When a tape stores sign and magnitude in separate positions (PIC X plus
PIC 9(11)V99), build a signed working-storage value before ADD /
SUBTRACT. Using only the unsigned magnitude in EVALUATE branches is a
frequent bug when debits and credits share the same magnitude field.
COMPUTE … ROUNDED rounds half away from zero in GnuCOBOL (matches the
Python Decimal ROUND_HALF_UP behaviour). Use it when multiplying a
two-decimal amount by a four-decimal rate and storing into a two-decimal
field.
cobc -x -free -Wall -o prog PROG.cblDISPLAY intermediate values for one or two records to confirm the
posting math and any cross-file lookups.