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SRS Residual Gas Analyzer

PYPI · LABMCP-SRS-RGA · SCANNED SEP 30

MCP server for SRS RGA100/200/300 residual gas analyzers.

Available components

83 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security99
  • No malware found by supply-chain analysis.Pass
  • No known CVEs affecting this package version or its production dependencies.Pass
  • Runs hatchling.build at install time, a recognised build step with no custom scripting around it. View diagnostics → Pass
  • 2 of 17 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
  • Source repository is publicly reachable at the declared URL. View diagnostics → Pass
  • Cryptographically verified build provenance (signed, bound to K-Dense-AI/lab-instrument-mcps). View diagnostics → Pass
  • Clear OSI-approved license (Apache-2.0).Pass
  • Actively maintained (last published 3 days ago).Pass
  • Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability75
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 2452 tokens (~136/item across 18 items; 18 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management13
  • Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage99
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 97% of tool parameters carry a description.Partial
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 18 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 19 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a current MCP spec version (2026-07-28).Pass
Install

How do I install the SRS Residual Gas Analyzer MCP server?

SRS Residual Gas Analyzer runs locally as a PyPI package, launched with uvx labmcp-srs-rga. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

pypi · labmcp-srs-rga

# add to Claude Code
claude mcp add k-dense-ai-labmcp-srs-rga -- uvx labmcp-srs-rga
// .cursor/mcp.json
{
  "mcpServers": {
    "k-dense-ai-labmcp-srs-rga": {
      "command": "uvx",
      "args": [
        "labmcp-srs-rga"
      ]
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "k-dense-ai-labmcp-srs-rga": {
      "command": "uvx",
      "args": [
        "labmcp-srs-rga"
      ]
    }
  }
}
# add to Codex CLI
codex mcp add k-dense-ai-labmcp-srs-rga -- uvx labmcp-srs-rga
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "k-dense-ai-labmcp-srs-rga": {
      "type": "local",
      "command": [
        "uvx",
        "labmcp-srs-rga"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add k-dense-ai-labmcp-srs-rga --command uvx --arg labmcp-srs-rga
# ~/.hermes/config.yaml
mcp_servers:
  k-dense-ai-labmcp-srs-rga:
    command: "uvx"
    args: ["labmcp-srs-rga"]
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "k-dense-ai-labmcp-srs-rga": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "labmcp-srs-rga"
      ]
    }
  }
}
# add to Vellum
assistant mcp add k-dense-ai-labmcp-srs-rga -t stdio -c uvx -a labmcp-srs-rga
// mcp.json
{
  "mcpServers": {
    "k-dense-ai-labmcp-srs-rga": {
      "command": "uvx",
      "args": [
        "labmcp-srs-rga"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 30 Sept 26 +15
    • Malware scan: unverified → pass ▲ security
  • 29 Sept 26 −14
    • Malware scan: pass → unverified ▼ security
  • 28 Sept 26 +43
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 27 Sept 26 −17
    • Tool safety: pass → unverified ▼ security
    • Malware scan: unverified → pass ▲ security
    • Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. security
    • Capabilities: pass → unverified ▼ functional
    • Tool coverage: 100 → unverified ▼ functional
    • First check of Schema quality: unverified functional
    • Package version: 0.1.0 → 0.1.1 functional
  • 26 Sept 26 56

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 30 Sept 2026 · Analysed pypi/labmcp-srs-rga@0.1.1

Provenance Verified

A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.

Result Verified
Ecosystem pypi
Reason Verified
Discovered via Registry attestation endpoint
Source repo K-Dense-AI/lab-instrument-mcps
Certificate issuer https://token.actions.githubusercontent.com
Certificate SAN https://github.com/K-Dense-AI/lab-instrument-mcps/.github/workflows/release.yml@refs/tags/labmcp-srs-rga-v0.1.1
Rekor log index 2969518225
Predicate type PyPI publish attestation https://docs.pypi.org/attestations/publish/v1
Subject digest sha256:23ba3973e361987855bfc48f74236f86796b869669e233b274e2340dbc11d2bb

Background: How many MCP packages publish verified provenance →

Install scripts 1 script
Hook Tier Command
build_backend allowlisted hatchling.build

Background: Why install scripts are a supply-chain risk →

Dependencies 17 packages
Packages resolved 17
Stale 2
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 18 exposed · ~1,875 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
all_off ~82

Put the RGA in a safe state: abort any degas, CDEM off (HV0), filament off (FL0) and quadrupole RF/DC off (MR0). Use when finished, before venting, or if anything looks wrong. It interrupts a running scan or leak check, and every step is attempted even if an earlier one fails.

Input schema present but exposes no named parameters.

NameTypeReqDescription
actionstringyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
emission_current_manumberyes–
filament_onbooleanyes–
messagestringyes–
pressure_evidence–––
status_byteintegeryes–
timestampstringyes–

No examples provided.

analog_scan ~173

Record an analog mass spectrum (SC1): the quadrupole steps through the mass range and the full peak shapes are returned (downsampled) with a peak list, the total pressure measured at the end of the scan, and optionally the full data as CSV. Use it to check peak positions and to survey unknown gases. Duration depends on the noise floor (e.g. 126 ms/amu at NF4). An existing save_path file is never overwritten.

NameTypeReqDescription
max_pointsinteger–Spectrum points returned
points_per_amuinteger–Steps per amu (SA)
save_path––Optional CSV path for the full spectrum (must not exist yet)
start_massinteger–First m/z
stop_massinteger–Last m/z
NameTypeReqDescription
detectorstringyes–
duration_snumberyes–
kindstringyes–
mzarrayyesMass axis (downsampled to max_points)
noise_floorintegeryes–
partial_pressure_torrarrayyesN2-equivalent partial pressure (downsampled)
peaksarrayyesPeaks above the noise, strongest first
points_per_amuintegeryes–
saved_to–––
start_massintegeryes–
stop_massintegeryes–
sum_partial_pressures_torrnumberyes–
timestampstringyes–
total_pointsintegeryes–
total_pressure_torr–yesMeasured at the end of the scan (null with CDEM)
warningsarray––

No examples provided.

calibrate ~112

Calibrate the detector: `zero` (CA) re-zeroes the ion detector at the present noise floor and detector and corrects the RF scan table for temperature drift (seconds); `electrometer` (CL) recalibrates the electrometer's full I-V response (longer, clears all zero offsets). The quadrupole RF is switched off at the end.

NameTypeReqDescription
kindstring–zero = CA (re-zero detector + mass axis correction); electrometer = CL (full I-V)
NameTypeReqDescription
actionstringyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
emission_current_manumberyes–
filament_onbooleanyes–
messagestringyes–
pressure_evidence–––
status_byteintegeryes–
timestampstringyes–

No examples provided.

cdem_off ~44

Switch the electron multiplier off (HV0) and return to Faraday-cup detection. Always allowed, and it interrupts a running scan, mass measurement or leak check.

Input schema present but exposes no named parameters.

NameTypeReqDescription
actionstringyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
emission_current_manumberyes–
filament_onbooleanyes–
messagestringyes–
pressure_evidence–––
status_byteintegeryes–
timestampstringyes–

No examples provided.

degas ~153

Start an ionizer degas (DG): 20 mA of 400 eV electrons clean the ion source by electron stimulated desorption. The CDEM is switched off and left off. Degassing shortens filament life; prefer a bakeout. Refused above `max_filament_pressure_torr` and beyond `max_degas_minutes`. Returns immediately; the RGA is busy until it finishes (any command would abort it), and `filament_off` / `all_off` stop it.

NameTypeReqDescription
external_pressure_torr––Pressure just read on a separate vacuum gauge, confirmed by the user
minutesinteger–Degas time incl. the 1-minute ramp
NameTypeReqDescription
actionstringyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
emission_current_manumberyes–
filament_onbooleanyes–
messagestringyes–
pressure_evidence–––
status_byteintegeryes–
timestampstringyes–

No examples provided.

filament_off ~42

Switch the filament off (FL0), stopping a degas first if one is running. Always allowed, and it interrupts a running scan, mass measurement or leak check.

Input schema present but exposes no named parameters.

NameTypeReqDescription
actionstringyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
emission_current_manumberyes–
filament_onbooleanyes–
messagestringyes–
pressure_evidence–––
status_byteintegeryes–
timestampstringyes–

No examples provided.

get_command_log ~46

Return the most recent raw commands sent to / replies received from the instrument (newest last). Useful for debugging and for recording what was done.

NameTypeReqDescription
limitinteger––
NameTypeReqDescription
resultarrayyes–

No examples provided.

get_connection_info ~40

Report which instrument is connected (identity, address, simulated or real), whether the server is read-only, and the active safety limits. Call this first.

Input schema present but exposes no named parameters.

Structured output declared, but exposes no named fields.

No examples provided.

get_status ~83

Report the RGA state: filament emission, CDEM on/off and voltage, ionizer settings, scan settings, stored sensitivity factors, and the decoded error bytes (e.g. FL6 when the overpressure protection shut the filament down). Reading the error bytes clears the communication (EC?) and CDEM (EM?) error bytes, as on the instrument.

Input schema present but exposes no named parameters.

NameTypeReqDescription
cdem_gain–yesStored CDEM gain (MG), used to scale CDEM currents
cdem_installedbooleanyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
degas–yesDegas cycle progress or last result, if any
electron_energy_evintegeryes–
emission_current_manumberyes–
errorsobjectyesDecoded error bytes; empty when everything is OK
filament_onbooleanyes–
firmwarestringyes–
focus_voltage_vintegeryesMagnitude of the (negative) focus plate voltage
ion_energy_evintegeryes8 (low) or 12 (high)
max_mass_amuintegeryes–
modelstringyes–
noise_floorintegeryes0 (slowest, lowest noise) to 7 (fastest)
partial_sensitivity_ma_per_torrnumberyesSP, N2 sensitivity stored in the head
points_per_amuintegeryes–
scan_ms_per_amunumberyes–
scan_start_massintegeryes–
scan_stop_massintegeryes–
serialstringyes–
single_mass_msnumberyes–
status_byteintegeryes–
timestampstringyes–
total_sensitivity_ma_per_torrnumberyesST, stored in the head

No examples provided.

histogram_scan ~85

Record a bar-graph spectrum (HS1): one peak-locked value per integer m/z plus the total pressure. Faster than an analog scan and the usual way to follow a residual gas composition.

NameTypeReqDescription
save_path––Optional CSV path (must not exist yet)
start_massinteger–First m/z
stop_massinteger–Last m/z
NameTypeReqDescription
detectorstringyes–
duration_snumberyes–
kindstringyes–
mzarrayyesMass axis (downsampled to max_points)
noise_floorintegeryes–
partial_pressure_torrarrayyesN2-equivalent partial pressure (downsampled)
peaksarrayyesPeaks above the noise, strongest first
points_per_amuintegeryes–
saved_to–––
start_massintegeryes–
stop_massintegeryes–
sum_partial_pressures_torrnumberyes–
timestampstringyes–
total_pointsintegeryes–
total_pressure_torr–yesMeasured at the end of the scan (null with CDEM)
warningsarray––

No examples provided.

identify_residual_gases ~130

Run a histogram scan and assign the major peaks to likely gases with a simple lookup of standard 70 eV fragment patterns: H2 (2), He (4), CH4 (16/15), H2O (18/17), N2 or CO (28, split with 14 and 12), O2 (32), Ar (40), CO2 (44), plus diagnoses such as an air leak or hydrocarbon contamination. A screening aid, not a quantitative analysis.

NameTypeReqDescription
stop_massinteger–Scan m/z 1 up to this mass
NameTypeReqDescription
caveatsarrayyes–
diagnosisarrayyes–
speciesarrayyes–
spectrum_torrobjectyesm/z -> N2-equivalent partial pressure used
timestampstringyes–
unassigned_peaksarrayyes–

No examples provided.

leak_check ~191

Helium leak check: monitor m/z 4 while someone sprays helium on suspect joints, and report the baseline, every response above `threshold_factor` x baseline (start/end time, peak) and the time series. Keep the first few seconds free of helium so the baseline is clean. The response time of a real leak is a few seconds. Bounded by `max_leak_check_duration_s`.

NameTypeReqDescription
baseline_pointsinteger–Readings used for the baseline
duration_snumber–How long to monitor
interval_snumber–Seconds between readings
max_pointsinteger–Points returned
mzinteger–Tracer gas m/z (4 = helium)
save_path––Optional CSV file for every reading (must not exist yet)
threshold_factornumber–Signal/baseline ratio that counts as a leak response
NameTypeReqDescription
baseline_noise_torrnumberyes–
baseline_torrnumberyesMedian of the first readings (before spraying)
countintegeryes–
duration_snumberyes–
eventsarrayyes–
helium_notestringyes–
interval_snumberyes–
leak_detectedbooleanyes–
max_torrnumberyes–
mzintegeryes–
partial_pressure_torrarrayyesHe-uncorrected (N2-equivalent) values, downsampled
saved_to–––
startedstringyes–
threshold_torrnumberyes–
times_sarrayyesSeconds since start (downsampled)

No examples provided.

measure_masses ~97

Measure partial pressures at a list of m/z values (peak-locked single-mass measurements, MR). Fast and precise for monitoring known gases; the precision and time per mass are set by the noise floor (`set_scan_parameters`). Pressures are N2-equivalent.

NameTypeReqDescription
massesarrayyesm/z values to measure, e.g. [2, 18, 28, 32, 40, 44]
NameTypeReqDescription
detectorstringyes–
noise_floorintegeryes–
readingsarrayyes–
timestampstringyes–
warningsarray––

No examples provided.

read_total_pressure ~71

Measure the total pressure with the RGA acting as an ionisation gauge (TP?, Faraday cup). Needs the filament on and the CDEM off. The value is N2-equivalent and can differ from a Bayard-Alpert gauge by a factor of a few, depending on the gas composition.

Input schema present but exposes no named parameters.

NameTypeReqDescription
filament_onbooleanyes–
ion_current_anumberyes–
notesarray––
pressure_torrnumberyesN2-equivalent total pressure (ion current / ST)
timestampstringyes–

No examples provided.

reconnect ~35

Close and re-open the connection to the instrument (e.g. after it was power cycled or a cable was re-plugged).

Input schema present but exposes no named parameters.

Structured output declared, but exposes no named fields.

No examples provided.

set_cdem ~166

Switch the electron multiplier (CDEM) on at a given high voltage for ~100-10000x more signal. High pressure shortens CDEM life and can destroy it, so this is refused unless the pressure is below `max_cdem_pressure_torr` (RGA total pressure measured now with the Faraday cup, a recent one, or `external_pressure_torr`), and the voltage is capped by `max_cdem_voltage_v`. Total-pressure readings are disabled while the CDEM is on.

NameTypeReqDescription
external_pressure_torr––Pressure just read on a separate vacuum gauge, confirmed by the user
voltage_vinteger–CDEM high voltage (magnitude); typical 1000-1600 V, default 1400
NameTypeReqDescription
actionstringyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
emission_current_manumberyes–
filament_onbooleanyes–
messagestringyes–
pressure_evidence–––
status_byteintegeryes–
timestampstringyes–

No examples provided.

set_filament ~153

Switch the filament on (or change its emission current). The filament burns out or is damaged above 1e-4 Torr, so this is refused unless the pressure is below `max_filament_pressure_torr`: pass `external_pressure_torr` from a separate gauge, or, if the filament is already on, the RGA's own total pressure is measured. The RGA's protection will also shut the filament down on overpressure (reported as FL6).

NameTypeReqDescription
emission_current_manumber–Electron emission current; 1.0 mA is the standard setting
external_pressure_torr––Pressure just read on a separate vacuum gauge, confirmed by the user
NameTypeReqDescription
actionstringyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
emission_current_manumberyes–
filament_onbooleanyes–
messagestringyes–
pressure_evidence–––
status_byteintegeryes–
timestampstringyes–

No examples provided.

set_scan_parameters ~172

Change measurement settings: noise floor (speed vs detection limit), electron energy, ion energy, focus plate voltage and analog-scan resolution. Sensitivity factors stored in the head are only valid at the default ionizer settings (70 eV, 12 eV, 90 V). After changing the noise floor the detector zero is re-adjusted automatically at the start of the next scan.

NameTypeReqDescription
electron_energy_ev––Default 70 eV
focus_voltage_v––Focus plate, default 90 V
ion_energy––low = 8 eV, high = 12 eV
noise_floor––0 = slowest/lowest noise ... 7 = fastest (default 4)
points_per_amu––Analog scan steps per amu
NameTypeReqDescription
cdem_gain–yesStored CDEM gain (MG), used to scale CDEM currents
cdem_installedbooleanyes–
cdem_onbooleanyes–
cdem_voltage_vnumberyes–
degas–yesDegas cycle progress or last result, if any
electron_energy_evintegeryes–
emission_current_manumberyes–
errorsobjectyesDecoded error bytes; empty when everything is OK
filament_onbooleanyes–
firmwarestringyes–
focus_voltage_vintegeryesMagnitude of the (negative) focus plate voltage
ion_energy_evintegeryes8 (low) or 12 (high)
max_mass_amuintegeryes–
modelstringyes–
noise_floorintegeryes0 (slowest, lowest noise) to 7 (fastest)
partial_sensitivity_ma_per_torrnumberyesSP, N2 sensitivity stored in the head
points_per_amuintegeryes–
scan_ms_per_amunumberyes–
scan_start_massintegeryes–
scan_stop_massintegeryes–
serialstringyes–
single_mass_msnumberyes–
status_byteintegeryes–
timestampstringyes–
total_sensitivity_ma_per_torrnumberyesST, stored in the head

No examples provided.

Common questions

What is the SRS Residual Gas Analyzer MCP server?

SRS Residual Gas Analyzer is an MCP server listed in the public MCP registry as io.github.K-Dense-AI/labmcp-srs-rga. MCP server for SRS RGA100/200/300 residual gas analyzers. This page covers its PyPI package (labmcp-srs-rga).

Is the SRS Residual Gas Analyzer MCP server safe to use?

SRS Residual Gas Analyzer scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 30 September 2026. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the SRS Residual Gas Analyzer MCP server expose?

SRS Residual Gas Analyzer exposes 18 tools: get_connection_info, get_command_log, reconnect, get_status, read_total_pressure, and 13 more. Their descriptions and schemas cost roughly 1,875 tokens of context every time the server is loaded.

Is the SRS Residual Gas Analyzer MCP server still maintained?

SRS Residual Gas Analyzer is still listed as active in the MCP registry. We last reached this channel on 30 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the SRS Residual Gas Analyzer MCP server under?

SRS Residual Gas Analyzer declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.