ContextSniper (Calluking/ContextSniper) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 12 tools. No publisher has claimed this listing.

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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⚡ Live Monitored: not connected

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Who stands behind it

Calluking

Source: github_code

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Install from

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Tool descriptions don’t match what handlers do
2 tools describe read intent but their handlers mutate — edit_file (line 456: target.write_text(updated, encoding="utf-8")); edit_file (line 207: target.write_text(updated, encoding="utf-8"))
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 5 credentials: CONTEXTSNIPER_AUTH_API_KEY, VOLC_API_KEY, CONTEXTSNIPER_API_KEY, CONTEXTSNIPER_EMBEDDING_API_KEY, OPENAI_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configCONTEXTSNIPER_ACCOUNT_ID
configCONTEXTSNIPER_AGENT_ID
configCONTEXTSNIPER_EDIT_DEBUG
configCONTEXTSNIPER_EDIT_REFRESH_TIMEOUT_SEC
configCONTEXTSNIPER_EDIT_REFRESH_WAIT
configCONTEXTSNIPER_FILTER_ENABLEDToggle read/exec filtering, default 1
configCONTEXTSNIPER_FILTER_NATIVE_BASH
configCONTEXTSNIPER_FILTER_NATIVE_READ
configCONTEXTSNIPER_OPENCLAW_AUTO_START
configCONTEXTSNIPER_OPENCLAW_AUTO_STOP
configCONTEXTSNIPER_OPENCLAW_LAUNCH_CWD
configCONTEXTSNIPER_OPENCLAW_LOAD_ENV
configCONTEXTSNIPER_OPENCLAW_READ_TOOL_POLICY
configCONTEXTSNIPER_PLUGIN_AUTO_START
configCONTEXTSNIPER_PLUGIN_AUTO_STOP
configCONTEXTSNIPER_PLUGIN_START_WAIT
configCONTEXTSNIPER_RUNTIME_DIR
configCONTEXTSNIPER_SEARCH_DEBUG
configCONTEXTSNIPER_SEARCH_INCLUDE_DEBUG
configCONTEXTSNIPER_SEARCH_LIMIT
configCONTEXTSNIPER_SESSION_ID
configCONTEXTSNIPER_SOURCE_TREE
configCONTEXTSNIPER_URL
configCONTEXTSNIPER_USER_ID
configCONTEXTSNIPER_WORKSPACE_ROOT
configNO_PROXY/no_proxy for 127.0.0.1, localhost, and ::1 so local ContextSniper/AGFS
configOPENCLAW_WORKSPACE_ROOT
configPYTHON
configPY_BINOptional Python override for plugin/backend runtime
configno_proxyNO_PROXY/ for 127.0.0.1, localhost, and ::1 so local ContextSniper/AGFS
configCLAUDE_PROJECT_DIR
configCONTEXTSNIPER_SEARCH_FORCE_LIMIT
configLLM_LISTENER_CAPTURE_RESPONSE_BYTES
configLLM_LISTENER_HOST
configLLM_LISTENER_PORT
configLLM_LISTENER_UPSTREAM_BASE_URL
configLLM_LISTENER_LOG
configCONTEXTSNIPER_BACKEND_WAIT_ON_TOOL
🔐 secretCONTEXTSNIPER_AUTH_API_KEY
configCONTEXTSNIPER_PLUGIN_HOOK_START_WAIT
configAGFS_BIN
configAGFS_HTTP_PORT
configAGFS_BASE_URL
configCONTEXTSNIPER_INJECT_CODE_POLICY_ON_SUBMIT
configCONTEXTSNIPER_CODE_SYNC_HOOK_TIMEOUT
configCONTEXTSNIPER_DIR
configCONTEXTSNIPER_FILTER_BASH_TIMEOUT
configCONTEXTSNIPER_INDEX_LEVELS
🔐 secretVOLC_API_KEY
configVOLC_BASE_URL
configVOLC_EMBEDDING_MODEL
configCONTEXTSNIPER_CONFIG
🔐 secretCONTEXTSNIPER_API_KEY
🔐 secretCONTEXTSNIPER_EMBEDDING_API_KEYAPI key for real semantic code search
configOPENGAUSS_DIMENSION
configCONTEXTSNIPER_COMPOSE_MAX_CODE_PATHS
configCONTEXTSNIPER_BOOTSTRAP_MAX_FILES
configCONTEXTSNIPER_BOOTSTRAP_FULL_INDEX_CAP_FILES
configCONTEXTSNIPER_CODE_SYNC_MAX_FILES
configCONTEXTSNIPER_CODE_SEARCH_CANDIDATE_MAX_FILES
configCONTEXTSNIPER_CODE_SEARCH_EMBED_MAX_FILES
configCONTEXTSNIPER_CODE_SEARCH_MAX_SNIPPETS
configCONTEXTSNIPER_CODE_SEARCH_INGEST_CANDIDATES
configCONTEXTSNIPER_CODE_SEARCH_INGEST_ASYNC
configCONTEXTSNIPER_CODE_SEARCH_INGEST_MAX_FILES
configCONTEXTSNIPER_CODE_SEARCH_INGEST_MAX_CHUNKS
configCONTEXTSNIPER_CODE_SYNC_TIMEOUT_SEC
configCONTEXTSNIPER_BOOTSTRAP_INGEST_WORKERS
configCONTEXTSNIPER_CODE_SEARCH_EMBED_BATCH_TEXTS
configCONTEXTSNIPER_CODE_SEARCH_EMBED_BATCH_TOKENS
configCONTEXTSNIPER_CODE_FUSE_MODE
configCONTEXTSNIPER_CODE_FUSE_W_EMBED
configCONTEXTSNIPER_CODE_FUSE_W_BM25
configCONTEXTSNIPER_CODE_FUSE_W_CTAGS
configCONTEXTSNIPER_CODE_FUSE_W_GRAPH
configCONTEXTSNIPER_SEARCH_BOOTSTRAP_DRAIN_ROUNDS
configCONTEXTSNIPER_AFTER_TURN_THRESHOLD
configCONTEXTSNIPER_SEARCH_BOOTSTRAP_WAIT_TIMEOUT_SEC
configCONTEXTSNIPER_CODE_RETRIEVE_EACH
configCONTEXTSNIPER_FILTER_MEMORY_MAX_LINES
configCONTEXTSNIPER_FILTER_READ_MIN_CHARS
configCONTEXTSNIPER_FILTER_READ_MAX_LINES
configCONTEXTSNIPER_FILTER_BASH_MAX_LINES
configCONTEXTSNIPER_FILTER_BASH_MIN_CHARS
configCONTEXTSNIPER_FILTER_BASH_MIN_LINES
🔐 secretOPENAI_API_KEY
configSWE_ROWS_API
configSWE_LITE_INSTANCE_ID
configREPO_BASE
configSWE_PROMPT_KIND
configSWE_PRO_INSTANCE_ID
configCONTEXTSNIPER_CODE_TOGGLE
configCONDA_EXE
configRUN_IDX
configSWE_LOCAL_ENV_PER_RUN
configSWE_LOCAL_ENV_RECREATE
configSWE_VALIDATION_PYTHON
configSWE_TASK_PYTHON
configSWE_VALIDATION_FORCE_LOCAL
configSWE_OFFICIAL_INSTANCE_IMAGE_TAG
configSWE_OFFICIAL_STABLE_INSTANCE_IMAGE_TAG
configSWE_VALIDATION_REUSE_REPORTS
configSWE_OFFICIAL_RETRIES
configSWE_VALIDATION_TIMEOUT_SEC
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

12/12 tools missing one or more hints — contextsniper_health (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); contextsniper_index_codebase (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); contextsniper_search_code (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +9 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Descriptions match behaviour

2 tools describe read intent but their handlers mutate — edit_file (line 456: target.write_text(updated, encoding="utf-8")); edit_file (line 207: target.write_text(updated, encoding="utf-8"))

Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.

Tool test coverage

Only 0/12 tools referenced in tests (0%)

Write tests that reference each tool by name so every tool has at least one test.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/calluking/contextsniper?variant=verified)](https://m8ven.ai/mcp/calluking/contextsniper)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 3241928c01806706a96a16017cb81f8647d842cc
code hash: f40fb77ed50a3888d3693810338aa1e972c2e2adf5b5b7785ce0e51c347764d9
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