Context Mode
Hacker ApprovedRanked 5 of 21 MCP servers by recommenders
People use it to shrink large tool output before it fills context, keeping results searchable. Critics say the 98% savings cover only built-in tools and CLI wrappers.
People use it to shrink large tool output before it fills context, keeping results searchable. Critics say the 98% savings cover only built-in tools and CLI wrappers.
17 people gave an opinion
- recommend it
- 16
- criticize it
- 1
- approval share
- 94%
Recommended in 6 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: recommended
- March 2026: recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 16 people recommend itNeeds 10 or more, met.
- 16 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 6 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Shrinks large tool output
“Context Mode just gives the model a more context-efficient way to process their results when the output would be large.”
Comment from 25 Feb 2026 in “Show HN: Context Mode – 315 KB of MCP output becomes 5.4 KB in Claude Code” “Context-mode typically brings that down to 1-2k per call while keeping the full output searchable if you need it later.”
Comment from 28 Feb 2026 in “Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code” “Instead of dumping raw logs and snapshots into context, it runs them in a sandbox and only returns a summary.”
Comment from 28 Feb 2026 in “Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code” - Comment from 28 Feb 2026 in “Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code”
- Comment from 1 Mar 2026 in “Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code”
Cuts token usage noticeably
“explaining how Context Mode reduces Claude Code's context consumption by 98%”
Comment from 5 Mar 2026 on Hacker News “I've been able to cut down on token usage with context-mode”
Comment from 14 Jun 2026 in “AI Coding at Home Without Going Broke” No extra LLM calls needed
“No LLM calls, purely algorithmic: SQLite FTS5 with BM25 ranking and Porter stemming.”
Comment from 28 Feb 2026 in “Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code” “The BM25+FTS5 approach without LLM calls is the right call”
Comment from 25 Feb 2026 in “Show HN: Context Mode – 315 KB of MCP output becomes 5.4 KB in Claude Code” Preferred over rtk alternatives
“I prefer it over rtk / headroom (at least in Cursor). The stop hooks seem to work well”
Comment from 20 May 2026 in “Show HN: Semble – Code search for agents that uses 98% fewer tokens than grep” “I had better results with lean ctx and context mode than with rtk.”
Comment from 18 May 2026 in “Show HN: Semble – Code search for agents that uses 98% fewer tokens than grep”
What people warn about
Each mark is one comment
98% savings claim overstated
“So the 98% savings are real but scoped to built-in tools and CLI wrappers”
Comment from 1 Mar 2026 in “Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code” “the claimed 98% context savings are noise without benchmarks of harness performance”
Comment from 1 Mar 2026 in “Stop Burning Your Context Window – How We Cut MCP Output by 98% in Claude Code”
Other MCP servers people recommend
The four most recommended other MCP servers, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Playwright MCP | 40 | 22 | 65% | 11 | — | — |
| Context7 | 40 | 7 | 85% | 10 | — | Approved |
| Chrome DevTools MCP | 36 | 22 | 62% | 9 | — | — |
| Serena MCP | 18 | 3 | 86% | 9 | — | Approved |
| Context ModeThis page | 16 | 1 | 94% | 6 | — | Approved |
What people said
25 of the 28 comments that mention it, newest first. Each links to the original comment.
“codegraph + context mode are all I need.”
“I've been able to cut down on token usage with context-mode”
“I prefer it over rtk / headroom (at least in Cursor). The stop hooks seem to work well”
“I had better results with lean ctx and context mode than with rtk.”
“Update agent to save session summary every 100k tokens”
“last30days and context-mode being the most useful so far”
“Claude was able to extract the entire AI chat session verbatim, including all tool calls.”
“explaining how Context Mode reduces Claude Code's context consumption by 98%”
“Context Mode solves output compression really well”
“the claimed 98% context savings are noise without benchmarks of harness performance”
“One thing I'd add to Context Mode's architecture”
“context-mode has no way to inject itself into the MCP tool-call - response loop.”
“So the 98% savings are real but scoped to built-in tools and CLI wrappers”
“Context-mode typically brings that down to 1-2k per call while keeping the full output searchable if you need it later.”
“Context-mode sidesteps this by never letting the bloat in to begin with”
“gets you most of the way there as a plugin today”
“Instead of dumping raw logs and snapshots into context, it runs them in a sandbox and only returns a summary.”
“Context-mode is still very much valuable, even if the answer is "no"”
“No LLM calls, purely algorithmic: SQLite FTS5 with BM25 ranking and Porter stemming.”
“Context Mode just gives the model a more context-efficient way to process their results when the output would be large.”
“That's a known bug in older versions — the WebFetch hook wasn't blocking reliably. Fixed in v0.7.1.”
“its tools don't seem to trigger reliably”
“The BM25+FTS5 approach without LLM calls is the right call”
“Context Mode is a standard MCP server, so it works with any client that supports MCP”
“Looks pretty interesting.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.