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Fetch HexDocs for Elixir libraries with HTML-to-markdown conversion.
Passed 15 of 18 test cases with the skill, and 13 of 18 without it.
and 1 more in the full report
4 fixed14 passed either way2 still failing2 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
I fetched `https://hexdocs.pm/swoosh` 5 minutes ago using WebFetch. I need to look at it again in the same session. Should I force a cache bypass header or re-use WebFetch?
| Checked | Without skill | With skill |
|---|---|---|
| Relies on WebFetch's automatic 15-minute caching mechanism. | Missed | Passed |
The instructions your model reads when the skill loads.
Efficiently fetch Elixir library documentation from hexdocs.pm using Claude Code's native WebFetch tool.
When researching libraries, use WebFetch:
# Fetch library overview
WebFetch(
url: "https://hexdocs.pm/oban",
prompt: "Extract the main documentation, including module overview, installation instructions, and key functions. Format as clean markdown."
)
# Fetch specific module docs
WebFetch(
url: "https://hexdocs.pm/phoenix_live_view/Phoenix.LiveView.html",
prompt: "Extract the module documentation including all public functions, their specs, and examples."
)
# Fetch getting started guide
WebFetch(
url: "https://hexdocs.pm/ecto/getting-started.html",
prompt: "Extract the complete getting started guide content."
)
WebFetch automatically converts HTML to markdown and extracts relevant content:
| Source | Raw HTML | With WebFetch | Benefit |
|---|---|---|---|
| HexDocs page | ~80k tokens | ~15k tokens | 80% reduction |
| Phoenix docs | ~120k tokens | ~25k tokens | 79% reduction |
| README | ~20k tokens | ~8k tokens | 60% reduction |
test cases passed, vs 13 / 18 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.