Haiku 5.5
Native agent · Not testedOperation / attempted scope <guest-path> · local stdio MCP start + initialize + tools/list
Agent-reported scope: Run the Oxylabs Web API MCP server over stdio and call its tools (search, scrape) against the live Oxylabs API
MCP server returned: oxylabs-web-api · version 0.1.0.
MCP tools returned: search, scrape, check_scrape, read_scraped, list_scrapers, scrape_target. Tool listing does not establish authenticated tool-call success.
Run details
- run
- oxylabs--web-api-mcp-claude-haiku-5-5-1792777780162059126
- date
- Oct 23, 2026
- time to working
- not recorded
- product hosting / execution
- Local stdio MCP server in the guest
- recorded operation scope
- product operation
- model
- claude-haiku-5-5
- agent / version
- claude-code / 2.1.300 (Claude Code)
- platform
- linux
- reported cost
- $0.021856
- Recorded source
- https://github.com/oxylabs/web-api-mcp
- Backend
- hyperv
- Tool transport
- mcp-assigned-vm
- Requested source pin (not an observed revision)
- {"commit": "895116f090cc83258a5a7b1079aaca5e9207d7ee", "url": "https://github.com/oxylabs/web-api-mcp"}
- Test version
- readme-bdc1b9b3c0d2673aef87e076d14084a8123ddcf09d520c1ee2e364a37c3f4bb9
- revision
- 895116f090cc83258a5a7b1079aaca5e9207d7ee
No Oxylabs Web API key in the guest
Step: Calling the search or scrape tool, which needs OXYLABS_WEB_API_KEY
No Oxylabs Web API key in the guest
Safety: No problems traced to this repository code in these checks.
No problems traced to this repository code in these checks.
OSV scanned supported lockfiles; unpinned dependencies and unsupported formats are outside this check.
A short run cannot establish that code is safe.
Connections show IP addresses; proxies can hide the final hostname.
Tracing covers dispatched commands and their children, not the whole OS; guest root can interfere with tracing.
Answers recorded for this run
- read_scraped reads an offloaded page in chunks: Real input produced the expected result: Chunk two of the off
Source: Read a large page that was offloaded to disk, in chunks
Input: {"tool": "read_scraped", "arguments": {"path": "<guest-path>", "offset": 26, "length": 20}}
Expected: returns the chunk starting at offset 26
Command: <guest-path> tools/call {"tool": "read_scraped", "arguments": {"path": "<guest-path>", "offset": 26, "length": 20}}
Observed: Chunk two of the off\"}", "type": "text"}], "isError": false, "structuredContent": {"path": "<guest-path>", "offset": 26, "returned_chars": 20, "total_chars": 59, "next_offset": 46, "eof": false, "text": "Chunk two of the off"}}
- search needs a live Oxylabs key and returns ranked results: Needs a real OXYLABS_WEB_API_KEY and live API access; none is available in this guest. A no-key call returned isError 'No Oxylabs Web API key'.
Source: Search the live web, returns ranked organic results (title, description, URL)
Observed: Needs a real OXYLABS_WEB_API_KEY and live API access; none is available in this guest. A no-key call returned isError 'No Oxylabs Web API key'.
- the key is required on stdio: Needs a real Oxylabs key to show a working call; the no-key error path was observed (search returned isError: No Oxylabs Web API key) but no key was supplied.
Source: *(required on stdio)*
Observed: Needs a real Oxylabs key to show a working call; the no-key error path was observed (search returned isError: No Oxylabs Web API key) but no key was supplied.
Examples
- lint passes: command completed successfully
Source: README.md / ## Development
Input: ruff check .
Expected: All checks passed!
Command: <guest-path> check .
Observed: All checks passed!
- formatting is clean: command completed successfully
Source: README.md / ## Development
Input: ruff format --check .
Expected: already formatted
Command: <guest-path> format --check .
Observed: 5 files already formatted
- offline test suite passes: command completed successfully
Source: README.md / ## Development
Input: pytest
Expected: 75 passed
Command: <guest-path> -q
Observed: ........................................................................ [ 96%] ... [100%] 75 passed in 4.02s
Local or hosted: local
Suggested next step (agent-reported): Provide OXYLABS_WEB_API_KEY in the guest (or a per-request Bearer header) and rerun a search and a scrape call against the live API.
What the agent did
Run the Oxylabs Web API MCP server over stdio and call its tools (search, scrape) against the live Oxylabs API
cd <guest-path> && pwd && ls -la && id -u && python3 --version && cat /etc/os-release | head -3 && (git -C . rev-parse HEAD 2>&1 | head -1)
cd <guest-path> && cat README.md 2>/dev/null | head -300
cd <guest-path> && ls -la .coldpass scripts tests src; cat pyproject.toml; cat .env.example; which uv pipx pip3 git; python3 -m venv --help >/dev/null 2>&1 && echo venv_ok || echo venv_missing
cd <guest-path> && git init -q && git remote add origin https://github.com/oxylabs/web-api-mcp && timeout 120 git fetch --depth 1 origin 895116f090cc83258a5a7b1079aaca5e9207d7ee; echo "fetch rc=$?"; git reset --mixed FETCH_HEAD 2>&1; git log --oneline -1 2>&1; git status --short | head
cd /tmp && python3 -m venv <guest-path> && <guest-path> --version && cd <guest-path> && timeout 900 <guest-path> install -q -e '.[dev]' 2>&1 | tail -20; echo "rc=${PIPESTATUS[0]}"; ls <guest-path> | grep -E 'oxylabs|pytest|ruff'
rm -rf <guest-path>; sudo -n apt-get update -qq 2>&1 | tail -3; sudo -n DEBIAN_FRONTEND=noninteractive apt-get install -y -qq python3.12-venv 2>&1 | tail -3; echo "rc=${PIPESTATUS[0]}"; cd /tmp && python3 -m venv <guest-path> && <guest-path> --version
cd <guest-path> && timeout 900 <guest-path> install -q -e '.[dev]' 2>&1 | tail -20; echo "rc=${PIPESTATUS[0]}"; ls <guest-path> | grep -E 'oxylabs|pytest|ruff'
cd <guest-path> && V=<guest-path>; $V/ruff check . ; echo "ruff check rc=$?"; $V/ruff format --check . ; echo "ruff format rc=$?"; timeout 600 $V/pytest -q 2>&1 | tail -15; echo "pytest rc=${PIPESTATUS[0]}"
cd <guest-path> && ls -R src | head -30 && grep -n "def \<email>\<email>\|OXYLABS_WEB_API_KEY\|credentials" src/oxylabs_web_api_mcp/server.py | head -80
ls -la <guest-path> /inputs/ 2>&1 | head; cd <guest-path> && sed -n 217,237p src/oxylabs_web_api_mcp/server.py; env | grep -i -E 'proxy|oxylabs' | sed 's/=.*/=<set>/'; sed -n 1446,1470p src/oxylabs_web_api_mcp/server.py
cd <guest-path> && sed -n 522,550p src/oxylabs_web_api_mcp/server.py; sed -n 1212,1253p src/oxylabs_web_api_mcp/server.py
cd <guest-path> && grep -n "def \|mcp_http\|'mcp'\|\"mcp\"\|credentials_error\|env" check.py | head -150
cd <guest-path> && sed -n 350,362p check.py; sed -n 384,444p check.py; sed -n 788,856p check.py
cd <guest-path> && sed -n 1168,1204p check.py; sed -n 856,870p check.py; sed -n 935,960p check.py; sed -n 1273,1300p check.py
mkdir -p <guest-path> <guest-path> && cat > <guest-path> <<'EOF'
import json, subprocess, sys, os
argv = json.loads(sys.argv[1]); tool = sys.argv[2]; args = json.loads(sys.argv[3])
p = subprocess.Popen(argv, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
def send(d): p.stdin.write(json.dumps(d)+"\n"); p.stdin.flush()
def recv():
while True:
line = p.stdout.readline()
if not line: return None
try: d = json.loads(line)
except ValueError: continue
return d
send({"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"t","version":"1"}}})
print("init:", json.dumps(recv().get("result",{}).get("serverInfo")))
send({"jsonrpc":"2.0","method":"notifications/initialized"})
send({"jsonrpc":"2.0","id":2,"method":"tools/list","params":{}})
r = recv(); print("tools:", [t["name"] for t in r["result"]["tools"]])
send({"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":tool,"arguments":args}})
print("call:", json.dumps(recv(), ensure_ascii=False)[:1500])
p.stdin.close(); p.terminate()
EOF
cd <guest-path> && V=<guest-path>;
echo "--- search without key (env key unset)"; env -u OXYLABS_WEB_API_KEY timeout 60 <guest-path> -I mcp_call.py '["<guest-path>"]' search '{"query":"oxylabs"}' 2>&1 | tail -5
echo "--- fixture + read_scraped"; printf 'Oxylabs fixture line one.\nChunk two of the offloaded page.\n' > <guest-path>
OXYLABS_SPILL_DIR=<guest-path> timeout 60 <guest-path> -I mcp_call.py '["<guest-path>"]' read_scraped '{"path":"<guest-path>","length":200}' 2>&1 | tail -5
cd <guest-path> && sed -i 's/ return d$/ if d.get("id") is None and "method" in d: continue\n return d/' mcp_call.py && env -u OXYLABS_WEB_API_KEY timeout 60 <guest-path> -I mcp_call.py '["<guest-path>"]' search '{"query":"oxylabs"}' 2>&1 | tail -2 | cut -c1-900
cd <guest-path> && grep -n -i "cron\|schedule\|sleep\|--once\|--now\|webhook\|interval" src/oxylabs_web_api_mcp/server.py | head; echo ---; grep -n -F "Read a large page that was offloaded to disk, in chunks" README.md; grep -n -F "*(required on stdio)*" README.md | cut -c1-120; grep -n -F "## Development" README.md; grep -n -F "Read a single URL as" README.md | cut -c1-80
cd <guest-path> && V=<guest-path> && cat > probe.json <<EOF
{"kind":"mcp","argv":["$V"],"cwd":"<guest-path>","env":{"OXYLABS_SPILL_DIR":"<guest-path>"},"tool":"read_scraped","arguments":{"path":"<guest-path>","offset":0,"length":200},"expected_text":"Chunk two of the offloaded page."}
EOF
cat > claims.json <<EOF
[
{"kind":"claim","claim":"read_scraped reads an offloaded page in chunks","source":"Read a large page that was offloaded to disk, in chunks","input":"fixture page in spill dir, offset 26, length 20","expected":"returns the chunk starting at offset 26","probe_kind":"mcp","argv":["$V"],"env":{"OXYLABS_SPILL_DIR":"<guest-path>"},"tool":"read_scraped","arguments":{"path":"<guest-path>","offset":26,"length":20},"expected_text":"Chunk two of the off","cwd":"<guest-path>"},
{"kind":"claim","claim":"search needs a live Oxylabs key and returns ranked results","source":"Search the live web, returns ranked organic results (title, description, URL)","testable":false,"reason":"Needs a real OXYLABS_WEB_API_KEY and live API access; none is available in this guest. A no-key call returned isError 'No Oxylabs Web API key'."},
{"kind":"claim","claim":"the key is required on stdio","source":"*(required on stdio)*","testable":false,"reason":"Needs a real Oxylabs key to show a working call; the no-key error path was observed (search returned isError: No Oxylabs Web API key) but no key was supplied."}
]
EOF
cat > examples.json <<'EOF'
[
{"kind":"example","claim":"lint passes","source":"README.md / ## Development","input":"ruff check .","expected":"All checks passed!","argv":["<guest-path>","check","."],"cwd":"<guest-path>","expected_text":"All checks passed!"},
{"kind":"example","claim":"formatting is clean","source":"README.md / ## Development","input":"ruff format --check .","expected":"already formatted","argv":["<guest-path>","format","--check","."],"cwd":"<guest-path>","expected_text":"already formatted"},
{"kind":"example","claim":"offline test suite passes","source":"README.md / ## Development","input":"pytest","expected":"75 passed","argv":["<guest-path>","-q"],"cwd":"<guest-path>","expected_text":"75 passed"}
]
EOF
cat > cycles.json <<'EOF'
{"detected":false,"reason":"Entry points inspected: README.md and src/oxylabs_web_api_mcp/server.py (main runs mcp.run stdio or http once). No cron, scheduler, loop, --once/--now, or webhook in the product; the only sleep is retry backoff inside one HTTP request. CI schedules are not product cycles.","checks":[]}
EOF
cat > report.json <<'EOF'
{"outcome":"needs_credentials","fault_owner":"prerequisite","operation":"Run the Oxylabs Web API MCP server over stdio and call its tools (search, scrape) against the live Oxylabs API","operation_scope":"Verified offline: install, ruff lint/format, 75 offline pytest tests, and read_scraped on a local fixture file. Not verified: search and scrape, which need a real OXYLABS_WEB_API_KEY that this guest does not have. No key was requested or obtained.","steps":["git init; git remote add origin https://github.com/oxylabs/web-api-mcp; git fetch --depth 1 origin 895116f090cc83258a5a7b1079aaca5e9207d7ee; git reset --mixed FETCH_HEAD","python3 -m venv <guest-path> (Python 3.12.3, README requires 3.10+)","pip install -e '.[dev]' (README Development section)","ruff check . && ruff format --check .","pytest (75 passed)","oxylabs-web-api-mcp over stdio: tools/list shows search, scrape, check_scrape, read_scraped, list_scrapers, scrape_target","read_scraped on a fixture file in OXYLABS_SPILL_DIR returned the expected chunk","search with no key returned isError: 'No Oxylabs Web API key...'"],"deviations":["python3-venv was missing; installed with sudo apt-get install python3.12-venv","workspace was not a git checkout; applied the pin with git init + fetch + reset as instructed","read_scraped was checked against a fixture text file I wrote into <guest-path>, because the product only writes spill files during a live scrape","No Oxylabs API key was available, so search/scrape/check_scrape/list_scrapers/scrape_target were not run against the live API","checker expects a credentials_error via a missing-response path; the product instead returns isError result text, so that check was recorded as an observation, not a PASS"],"stuck_step":"Calling the search or scrape tool, which needs OXYLABS_WEB_API_KEY","main_blocker":"No Oxylabs Web API key in the guest","plain_failure":"The main web search and page-reading features cannot run here because they need a paid Oxylabs API key, which this sandbox does not have. The install, the offline tests, and reading saved pages work.","suggested_fix":"Provide OXYLABS_WEB_API_KEY in the guest (or a per-request Bearer header) and rerun a search and a scrape call against the live API."}
EOF
for f in probe claims examples cycles report; do python3 -I -m json.tool $f.json >/dev/null && echo "$f ok"; done; ls -la <guest-path>
cd <guest-path> && <env-var>=<guest-path> python3 -I <guest-path> --validate --replay; echo; echo "rc=$?"
pgrep -af "oxylabs-web-api-mcp|mcp_call" || echo "no servers running"; ls <guest-path>run JSON · checker evidence · agent report + check · transcript excerpt unavailable · error excerpt unavailable