Review how the lean-ctx ctx MCP tools performed in the current session and file upstream issues for confirmed problems. Use when the user asks to review/audit lean-ctx tool performance, says "lean-ctx review", asks why ctx tools failed or fell back to native tools, or wants to report a lean-ctx bug.
A web crawler and scraper that searches with DuckDuckGo, fetches individual pages or whole sites, and returns clean Markdown intended for language models. It can also scrape pages that need JavaScript to display their content.
Use when an agent has many skills/tools/prompts and must cut prompt tokens by routing adaptively. Runs routing outside model context when possible, indexes metadata on disk, lazy-loads one primary plus up to four complementary support skills, and benchmarks savings across agents.
Calibrates Claude's response length and format to minimise unnecessary token usage without sacrificing quality. Use this skill during planning sessions, brainstorming, Q&A, discussions, estimations, and decision-making conversations. Claude defaults to concise, direct answers and expands only when the complexity or…
Prevents prompt-cache thrash and runaway token burn in long or image-heavy agent sessions. Load BEFORE reading images/screenshots (visual QA, render checks, UI verification, diagram review) in a conversation that already has substantial history, when running long agentic loops with periodic wake-ups, or when the user…
A two-way semantic compiler that compresses PRDs, codebases, research papers, and meeting notes into dense symbolic notation, and reconstructs them back into professional prose. Use this skill whenever the user writes SQUEEZE, EXPAND, DIFF, MERGE, SUMMARISE, LIST SQUEEZES, RECALL, SEARCH, DELETE, or EXPORT ALL — or…
Render a large paste, clipboard, or file into a dense PNG image via pxpipe and load it into context as an image, so bulky content costs vision tokens (3x denser) instead of text tokens — with a verbatim appendix of any byte-exact tokens. Use when a message starts with "pipethis:", or the user says "paste as image"…