OA prep from OAHelper

Part of oahelper-mcp by Sirjan Singh.

OAHelper content comes from the oahelper MCP server. Its library at library/<company>/ in the data folder (oahelper_status prints where) is the offline source of truth: read the files there rather than re-fetching.

OAHelper's terms forbid bots and redistribution, and the penalty can be losing Pro. Fetch one company at a time, only when asked. Never copy library content into anything that leaves this machine (posts, GitHub, shared docs).

Steps

1. Offline first. oahelper_offline(company). If the pack exists and is under a week old, go to step 3.
2. Sync. oahelper_sync(company), repeated while it says NOT DONE, capped at about 60 live requests for one guide. If the search shows the company under a different unique_company_name, sync that name. Leave include_images off unless a statement says its screenshots carry the only copy of the input or the options.
3. Read the pack. Start with library/<co>/index.md, then the sets, questions and interviews. Weight by date: the last 12 months decide the format; older sets are pattern evidence only. Put the year on every item you cite.
4. Add public sources: LeetCode Discuss, GeeksforGeeks interview experiences, the company's own careers pages. Search before asserting anything about the hiring process.
5. Official solutions (oahelper_solution) only for the few coding questions where the approach is not obvious. Solve the rest yourself and label them as your own.
6. Write the guide to prep/<co>-oa-prep.md (or wherever the user keeps prep notes). If a guide already exists, add a ## From OAHelper (<date>) section instead of a second file.

Guide format

• Header: role, OA date and time if known, how the guide was compiled and when.
• ## What the evidence supports: a table of the newest reports (date, setting, format, source), then the converged picture: question count, time limit, scoring, topic mix.
• Every past OA question: one line with its set name and date, the topic, the closest known LeetCode or CSES problem, and a link to the saved file.
• MCQ section: recurring themes from the answer keys, with a few representative questions and their answers.
• Interview rounds from the experience write-ups: what each round tests, what sank people.
• A time-boxed study plan when the OA date is known.
• ## Sources: OAHelper URLs from the file headers, plus public links.

Write unknown values as UNKNOWN; never guess.