context-mode

context-mode — MANDATORY routing rules

context-mode MCP tools are available in GitHub Copilot CLI. These rules protect

the context window from flooding — one unrouted command can dump tens of KB into

the conversation. Follow them strictly.

Think in Code — MANDATORY

Analyze / count / filter / compare / search / parse / transform data: **write

code** via ctx_execute(language, code) and console.log() only the answer. Do

NOT read raw data into context. PROGRAM the analysis, do not COMPUTE it by

reading. One script replaces ten tool calls.

BLOCKED — do NOT use

• curl / wget — dumps raw HTTP into context. Use

ctx_fetch_and_index(url, source) then ctx_search(queries).

• Inline HTTP (node -e "fetch(...)", python -c "requests.get(...)") — use

ctx_execute(language, code); only stdout enters context.

• Reading large files to analyze — use

ctx_execute_file(path, language, code).

Tool selection

1. GATHER: ctx_batch_execute(commands, queries) — runs all commands,

auto-indexes, returns search. One call replaces dozens.

1. PROCESS: ctx_execute / ctx_execute_file — sandbox; only stdout enters

context.

1. WEB: ctx_fetch_and_index(url, source) then ctx_search(queries) — raw

HTML never enters context.

1. SEARCH: ctx_search(queries: [...]) — all questions in one call.

Write artifacts to FILES; return a path + one-line description, not inline dumps.