菜单
GnuCOBOL toolchain pointers for mainframe-style batch programs (LINE/RECORD SEQUENTIAL files, PIC clauses, cobc build flags).
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/benchflow-ai/skillsbench --skill gnucobol-mainframe-batch命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
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.
正在显示 SKILL.md
基于 SOC 职业分类
| 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.