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com.tttkmbb/calcgrid

com.tttkmbb/calcgrid v1.9.0

Security Trust Score
Grade D · Weak posture
Tier 2 · Live endpointLow confidence · 25%
Declared MCP capabilities
ResourcesPrompts

This server scored D. Run it behind runtime policy enforcement so one bad tool call can't become an incident.

Security controls

Deterministic, evidence-backed. Score earned from passing controls; a failed guard caps it.

Model–MCP Runtime Guardrails

  • Pass
    Indirect Prompt Injection (IPI) Defensesguardno injection markers

    Tool/prompt/resource text is free of hidden instructions that could hijack the agent.

  • Pass
    Tool Definition Integrityguardtool definitions stable; no risky changes in version history

    Every consecutive version pair is diffed for new injection markers or destructive scope — a risky diff anywhere in history is a rug-pull (fail, durable); benign description drift warns.

  • Pass
    User-in-the-Loop / Approval Scopeguardno destructive tool scope

    No over-broad or destructive tools (arbitrary shell, bulk-delete) that warrant human approval.

  • Not checked
    Strict JSON Schema Enforcementno source files

    Tool inputs are constrained (additionalProperties:false), so unexpected arguments can't be smuggled in.

  • Not checked
    In-Session Definition Integrityguardno source

    Tool and prompt definitions stay fixed during a session — they don't change after a few calls, which is how runtime-gated rug-pulls slip past one-time review.

Application Security Checks

  • Not checked
    No command-injection sinksguardno source

    Untrusted tool input reaching a shell yields remote code execution.

  • Not checked
    No dynamic code executionguardno source

    eval()/exec()/Function() on tool-derived strings allows arbitrary code execution.

  • Not checked
    No path traversalguardno source

    Naive path checks let tools read/write outside intended directories (EscapeRoute-class).

  • Not checked
    No SSRF sinksguardno source

    Fetching tool-supplied URLs can pivot into internal networks and metadata services.

  • Not checked
    No unsafe deserializationguardno source

    pickle/yaml.load/etc. on untrusted data can execute code.

  • Not checked
    No committed secretsguardno source

    Hardcoded keys/tokens in published source are live credentials an attacker can use.

  • Not checked
    Credentials sourced from environmentno source files

    Reading secrets from env/secret stores avoids hardcoding them.

  • Not checked
    Dependencies pinned (lockfile)no source files

    A lockfile makes installs reproducible and resistant to silent dependency swaps.

  • Not checked
    Actively maintainedno GitHub repository

    Unmaintained servers don't receive security fixes.

  • Not checked
    Repository not archivedguardno GitHub repository

    Archived repositories will never be patched.

  • Not checked
    Declares a licenseno GitHub repository

    A clear license is required for legal enterprise use.

  • Not checked
    Has a security policyno source files

    A SECURITY.md gives a private path to report vulnerabilities.

  • Not checked
    Signed releasesnot evaluated

    Signed releases let consumers verify artifacts weren't tampered with.

  • Not checked
    Adoption & popularityno adoption signal

    A small, capped nudge from stars/downloads — widely-used servers get more eyes on bugs. It can never offset a real security failure.

  • N/A
    No known-vulnerable dependenciesno dependencies to scan

    Runtime dependencies (parsed from the lockfile) are scanned against OSV.dev for published CVEs. Advisory: flagged dependencies lower the score but don't hard-cap it, since transitive reachability is unproven.

  • N/A
    No install/post-install scriptsguardno published package

    install hooks run arbitrary code on every consumer at install time.

  • N/A
    Package name not typosquattingguardno published package

    Names mimicking popular packages are a common malware delivery vector.

  • N/A
    Published with provenanceno published package

    Build provenance attests the artifact was built from the claimed source by CI.

  • N/A
    Established maintainerno published package

    Brand-new / single anonymous maintainers raise takeover and malware risk.

Transport & Trust Model

  • Warn
    IAM / Authentication Scopingno authentication handling detected

    OAuth 2.1 / Protected Resource Metadata gates who can invoke tools.

    Fix: Implement OAuth 2.1 with a .well-known/oauth-protected-resource document.

  • Pass
    Transport Encryption (TLS)guardall remotes use HTTPS

    Plaintext HTTP exposes traffic and bearer tokens to interception.

  • Not checked
    No Token Passthroughguardno source

    The client's token is never forwarded to downstream APIs — the server obtains its own, correctly-scoped credential instead.

  • Not checked
    DNS-Rebinding Protectionno source to inspect

    HTTP endpoints reject requests carrying an unlisted Origin, so a malicious web page can't drive the server through the user's browser.

  • Not checked
    Execution Sandboxingno source files

    A container/sandbox image limits blast radius; a server that runs natively has full host access.

  • Not checked
    Network Exposureno source files

    Binding 0.0.0.0 or exposing debug inspectors widens the attack surface.

  • N/A
    Live Endpoint Reachablenot dynamically scanned

    A dynamic scan connected to the declared remote endpoint and it responded — verified live, not a dead URL.

  • N/A
    Authentication Enforced (live)not dynamically scanned

    If the server declares auth is required, it must actually reject anonymous clients. Serving tools to unauthenticated callers is a real exposure.

Tools (253)

list_unitscalculate_agecalculate_bmicalculate_bmrcalculate_tipcompare_loansconvert_unitscalculate_tdeerun_calculatorsolve_ohms_lawcalculate_subnetcalculate_t_testlist_calculatorslist_solar_termsconvert_time_zoneresolve_local_timesearch_calculatorsadd_ar_working_daysadd_at_working_daysadd_bd_working_daysadd_be_working_daysadd_bg_working_daysadd_br_working_daysadd_ch_working_daysadd_cl_working_daysadd_co_working_daysadd_cz_working_daysadd_de_working_daysadd_dk_working_daysadd_ee_working_daysadd_eg_working_daysadd_es_working_daysadd_fi_working_daysadd_fr_working_daysadd_gh_working_daysadd_gr_working_daysadd_hk_working_daysadd_hr_working_daysadd_hu_working_daysadd_id_working_daysadd_it_working_daysadd_ke_working_daysadd_kr_working_daysadd_kz_working_daysadd_lk_working_daysadd_lt_working_daysadd_lu_working_daysadd_lv_working_daysadd_mt_working_daysadd_mx_working_daysadd_my_working_daysadd_ng_working_daysadd_nl_working_daysadd_no_working_daysadd_pe_working_daysadd_ph_working_daysadd_pk_working_daysadd_pl_working_daysadd_pt_working_daysadd_ro_working_daysadd_ru_working_daysadd_sa_working_daysadd_se_working_daysadd_si_working_daysadd_sk_working_daysadd_th_working_daysadd_tw_working_daysadd_uk_working_daysadd_vn_working_daysconvert_temperaturefind_chinese_zodiaccalculate_molar_masscalculate_percentagecheck_ar_working_daycheck_at_working_daycheck_bd_working_daycheck_be_working_daycheck_bg_working_daycheck_br_working_daycheck_ch_working_daycheck_cl_working_daycheck_co_working_daycheck_cz_working_daycheck_de_working_daycheck_dk_working_daycheck_ee_working_daycheck_eg_working_daycheck_es_working_daycheck_fi_working_daycheck_fr_working_daycheck_gh_working_daycheck_gr_working_daycheck_hk_working_daycheck_hr_working_daycheck_hu_working_daycheck_id_working_daycheck_it_working_daycheck_ke_working_daycheck_kr_working_daycheck_kz_working_daycheck_lk_working_daycheck_lt_working_daycheck_lu_working_daycheck_lv_working_daycheck_mt_working_daycheck_mx_working_daycheck_my_working_daycheck_ng_working_daycheck_nl_working_daycheck_no_working_daycheck_pe_working_daycheck_ph_working_daycheck_pk_working_daycheck_pl_working_daycheck_pt_working_daycheck_ro_working_daycheck_ru_working_daycheck_sa_working_daycheck_se_working_daycheck_si_working_daycheck_sk_working_daycheck_th_working_daycheck_tw_working_daycheck_uk_working_daycheck_vn_working_dayconvert_betting_oddscount_ar_working_dayscount_at_working_dayscount_bd_working_dayscount_be_working_dayscount_bg_working_dayscount_br_working_dayscount_ch_working_dayscount_cl_working_dayscount_co_working_dayscount_cz_working_dayscount_de_working_dayscount_dk_working_dayscount_ee_working_dayscount_eg_working_dayscount_es_working_dayscount_fi_working_dayscount_fr_working_dayscount_gh_working_dayscount_gr_working_dayscount_hk_working_dayscount_hr_working_dayscount_hu_working_dayscount_id_working_dayscount_it_working_dayscount_ke_working_dayscount_kr_working_dayscount_kz_working_dayscount_lk_working_dayscount_lt_working_dayscount_lu_working_dayscount_lv_working_dayscount_mt_working_dayscount_mx_working_dayscount_my_working_dayscount_ng_working_dayscount_nl_working_dayscount_no_working_dayscount_pe_working_dayscount_ph_working_dayscount_pk_working_dayscount_pl_working_dayscount_pt_working_dayscount_ro_working_dayscount_ru_working_dayscount_sa_working_dayscount_se_working_dayscount_si_working_dayscount_sk_working_dayscount_th_working_dayscount_tw_working_dayscount_uk_working_dayscount_vn_working_daysget_calculator_schemaadd_china_working_dayscalculate_loan_paymentcalculate_running_paceconvert_lunar_to_solarconvert_solar_to_lunarlookup_iching_hexagramadd_global_working_daysadd_turkey_working_dayscheck_china_working_dayadd_ireland_working_dayscalculate_depth_of_fieldcalculate_kinetic_energycheck_global_working_daycheck_turkey_working_daycount_china_working_dayssolve_quadratic_equationcalculate_date_differencecheck_ireland_working_daycount_global_working_dayscount_turkey_working_daysestimate_ev_charging_timeadd_australia_working_daysadd_singapore_working_dayscalculate_mortgage_paymentcast_plum_blossom_hexagramcount_ireland_working_dayslist_calculator_categorieslist_time_zone_transitionslist_working_day_calendarsprice_black_scholes_optionadd_us_federal_working_daysadd_uzbekistan_working_dayscalculate_bazi_four_pillarscalculate_business_deadlinecalculate_circle_propertiescalculate_compound_interestcalculate_percentage_changecheck_australia_working_daycheck_singapore_working_dayadd_new_zealand_working_daysadd_uae_federal_working_dayscalculate_haversine_distancecheck_us_federal_working_daycheck_uzbekistan_working_daycount_australia_working_dayscount_singapore_working_daysadd_south_africa_working_dayscalculate_fraction_arithmeticcheck_new_zealand_working_daycheck_uae_federal_working_daycount_us_federal_working_dayscount_uzbekistan_working_daysadd_india_central_working_dayscalculate_ab_test_significancecheck_south_africa_working_daycount_new_zealand_working_dayscount_uae_federal_working_daysadd_canada_federal_working_daysadd_japan_national_working_dayscalculate_amortization_schedulecheck_india_central_working_daycount_south_africa_working_dayscalculate_descriptive_statisticscheck_canada_federal_working_daycheck_japan_national_working_daycount_india_central_working_daysadd_global_reference_working_dayscount_canada_federal_working_dayscount_japan_national_working_dayscheck_global_reference_working_daycount_global_reference_working_daysadd_global_public_holiday_working_dayscheck_global_public_holiday_working_daycount_global_public_holiday_working_days
com.tttkmbb/calcgrid v1.9.0 — 40/100 · Canopii Trust Index