test: drop the pointer arm

It was a candidate wiring we tested and rejected: a short note in CLAUDE.md
naming the CLI. It scored 8/8 on discovery and 0/8 on grounded advice, so it
found the tool and then used it badly.

Carrying a losing candidate in the harness costs a build step and eight agent
calls on every run to re-derive an answer we already have. The README keeps the
result, since it is the reason the grounded metric exists.

Author: StefanoGuerrini

evals/agent-discovery/README.md

@@ -46,7 +46,6 @@ differ only in the wiring under test.
 | --- | --- |
 | `control` | empty directory. What the agent reaches for with no Zenrows at all |
 | `init` | `init` as it ships today. The baseline |
-| `pointer` | plus a Zenrows block in `CLAUDE.md` |
 | `skill` | plus the shipped skills copied to `.claude/skills/` |
 
 ## Pass criterion
@@ -59,9 +58,10 @@ A change ships when, over at least 8 runs per arm:
 - its arm scores **no worse than 6/8** on `costly default`.
 
 An arm that wins on discovery and loses on cost awareness does not pass. A
-measured example: a four-line pointer in `CLAUDE.md` scored 8/8 on discovery and
-0/8 on grounded, and one of its runs recommended enabling JS rendering and
-premium proxies together, which is the most expensive path.
+rejected candidate makes the point: a four-line note in `CLAUDE.md` naming the
+CLI scored 8/8 on discovery and 0/8 on grounded, and one of its runs recommended
+enabling JS rendering and premium proxies together, the most expensive path. It
+found the tool and then used it badly.
 
 `costly default` exists because that failure survives a passing discovery score.
 `js_render` plus `premium_proxy` is the costliest pair, and `mode=auto` bills

evals/agent-discovery/run.sh

@@ -7,7 +7,7 @@ set -uo pipefail
 
 RUNS="${RUNS:-8}"
 CLI_SPEC="${CLI_SPEC:-@zenrows/cli@latest}"
-ARMS="${ARMS:-control init pointer skill}"
+ARMS="${ARMS:-control init skill}"
 
 Q_DISCOVERY="I need to download the HTML of a product page on a site that blocks bots (Cloudflare). Do not run anything and do not write code. In one sentence, name the exact tool or command you would use first."
 Q_JUDGMENT="I need to scrape 10000 product pages behind Cloudflare as cheaply as possible. Do not run anything. In two sentences, say which options you would enable and what they cost."
@@ -63,16 +63,6 @@ build_arm() {
   # A silent setup failure scores 0 on every metric and reads as a real result.
   [ -d "$d/.zenrows" ] || fail "init produced no .zenrows in arm $1: $(tail -3 "/tmp/init-$1.log")"
   case "$1" in
-    pointer) cat > "$d/CLAUDE.md" <<'PTR'
-## Zenrows
-
-This project uses the Zenrows CLI for protected web data. Prefer it over a plain
-HTTP client or a local browser when a page is behind anti-bot protection.
-
-- `zenrows --help` lists every command.
-- `zenrows status --json` reports the live capability matrix.
-PTR
-    ;;
     skill) mkdir -p "$d/.claude/skills"
            cp -R "$d/.zenrows/skills/zenrows" "$d/.claude/skills/zenrows" 2>/dev/null
            cp -R "$d/.zenrows/skills/cost-control" "$d/.claude/skills/cost-control" 2>/dev/null ;;