Flintrail
MCPB · FLINTRAIL.MCPB
Drive a real Chrome live, record a flow once, replay it in milliseconds without an LLM.
Available components
Last scanned (4 hours ago)
Scores higher than 78% of MCPB servers
Category Browser Automation
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 Security23
- No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.Unverified
- Known CVEs were checked across the 94 of 94 dependencies we could resolve, so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- 30 of 94 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 6 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability60
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 1262 tokens (~66/item across 19 items; 19 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management33
- Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage78
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 35% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 19 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 supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 0
- Dependency health: partial → 0.86 functional
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 0
- Schema quality: 57 → 66 ▼ functional
- Tool coverage: 29% → 35% ▲ functional
- Dependency health: 0.86 → partial functional
- 28 Oct 26 +2
- Schema quality: 943 → 1040 ▼ functional
- Tool coverage: 23% → 29% ▲ functional
- Stability: unverified → 0.07 ▲ functional
- 26 Oct 26 42
First indexed and scored.
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 5 Nov 2026 · Analysed mcpb/https://github.com/Soflutionltd/flintrail/releases/download/v1.3.0/flintrail.mcpb
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | mcpb |
| Reason | No attestation published |
Background: How many MCP packages publish verified provenance →
Dependencies 94 packages
| Packages resolved | 94 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
fl_act ~108
Run SEVERAL actions in one call (fill a whole form, click, submit, wait, extract) and get one fresh snapshot back. Always batch as many actions as possible: one call beats ten.
| Name | Type | Req | Description |
|---|---|---|---|
| actions | array | yes | – |
| max | number | – | Max interactive elements listed (default 150). |
| snapshot | boolean | – | – |
| tab | string | yes | – |
| text | number | – | Characters of page text to include (default 600, 0 for none). |
No output schema declared.
No examples provided.
fl_adopt ~97
Take control of a tab the user already has open in the browser (first match on a URL substring), e.g. a site they just signed in to by hand. Returns its snapshot.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Max interactive elements listed (default 150). |
| text | number | – | Characters of page text to include (default 600, 0 for none). |
| url | string | yes | Substring of the tab URL |
No output schema declared.
No examples provided.
fl_close ~22
Close a Flintrail tab.
| Name | Type | Req | Description |
|---|---|---|---|
| tab | string | yes | – |
No output schema declared.
No examples provided.
fl_console ~60
Console errors and uncaught exceptions of a tab (level "all" adds warnings and logs). fl_act and fl_snapshot already say when new errors appeared.
| Name | Type | Req | Description |
|---|---|---|---|
| clear | boolean | – | – |
| level | string | – | – |
| tab | string | yes | – |
No output schema declared.
No examples provided.
fl_extension ~20
Status of the Flintrail browser extension (extension mode).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fl_extract ~68
Run JavaScript in the page and return the result. Fastest way to pull tables, lists or links.
| Name | Type | Req | Description |
|---|---|---|---|
| js | string | yes | Function body with return, e.g. return [...document.querySelectorAll("tr")].map(r => r.innerText) |
| tab | string | yes | – |
No output schema declared.
No examples provided.
fl_flow ~26
Show a flow with all its steps and element fingerprints.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | – |
No output schema declared.
No examples provided.
fl_flow_set_var ~63
Turn the literal value of one step into a variable {{var}}, e.g. after recording by demonstration.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | – |
| step | number | yes | Step index, as shown by fl_flow (0-based). |
| var | string | yes | – |
No output schema declared.
No examples provided.
fl_flows ~19
List recorded flows with their variables and last timing.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fl_login ~222
Sign in on the open sign-in form with the user's saved password: from the browser's own password manager, or from a password manager CLI the user configured (1Password, Bitwarden, custom command). Flintrail fills username, password and one-time code itself; the secrets never reach you. A CLI login is only filled when the page domain matches its website. On a multi-step sign-in (e-mail page, then password page), call it on each step. While recording, the flow stores the source and login ID, never a secret.
| Name | Type | Req | Description |
|---|---|---|---|
| item | string | – | Login ID, title or username in a password manager CLI, when several match the site. |
| max | number | – | Max interactive elements listed (default 150). |
| source | string | – | Only this source: browser, 1password, bitwarden or command. |
| submit | boolean | – | Press Enter after filling (default true). |
| tab | string | yes | – |
| text | number | – | Characters of page text to include (default 600, 0 for none). |
No output schema declared.
No examples provided.
fl_network ~75
List the API calls (fetch/XHR) the site made, with method, status, timing, body and a JSON sample. Use it to replace UI clicks with a direct {do:"request"} step: the fastest possible replay.
| Name | Type | Req | Description |
|---|---|---|---|
| filter | string | – | Substring the URL must contain. |
| limit | number | – | – |
No output schema declared.
No examples provided.
fl_open ~87
Open a URL in a background tab of the dedicated browser (logged-in sessions kept). Returns a compact snapshot whose [eN] refs can be used directly in fl_act.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Max interactive elements listed (default 150). |
| text | number | – | Characters of page text to include (default 600, 0 for none). |
| url | string | yes | – |
No output schema declared.
No examples provided.
fl_record_start ~81
Start recording a flow. Every fl_open / fl_act after this is captured with robust element fingerprints so fl_run can replay it without an LLM. repairFrom keeps steps before that index and replaces the rest.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | – | – |
| name | string | yes | – |
| repairFrom | number | – | – |
| startUrl | string | – | – |
No output schema declared.
No examples provided.
fl_record_stop ~28
Stop recording and save the flow (save=false to discard).
| Name | Type | Req | Description |
|---|---|---|---|
| save | boolean | – | – |
No output schema declared.
No examples provided.
fl_run ~64
Replay a recorded flow at browser speed, no LLM. On failure (site changed) it stops at the failing step and returns the page so the flow can be repaired.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | – |
| tab | string | – | – |
| vars | object | – | – |
No output schema declared.
No examples provided.
fl_run_many ~56
Replay the same flow for many variable sets in parallel, each in its own background tab.
| Name | Type | Req | Description |
|---|---|---|---|
| concurrency | number | – | – |
| keepTabs | boolean | – | – |
| name | string | yes | – |
| runs | array | yes | – |
No output schema declared.
No examples provided.
fl_screenshot ~80
Screenshot of a tab, or of one element with ref / selector. Only when the visual layout matters: snapshots are much cheaper. Pixels are CSS pixels, usable as x / y for {do:"mouse"}.
| Name | Type | Req | Description |
|---|---|---|---|
| full | boolean | – | – |
| ref | string | – | – |
| selector | string | – | – |
| tab | string | yes | – |
No output schema declared.
No examples provided.
fl_snapshot ~70
Re-read a tab: interactive elements with refs, headings and the start of the text.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Max interactive elements listed (default 150). |
| tab | string | yes | – |
| text | number | – | Characters of page text to include (default 600, 0 for none). |
No output schema declared.
No examples provided.
fl_tabs ~16
List tabs opened by Flintrail.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the Flintrail MCP server?
Flintrail ships as an MCPB bundle, a single file you download and open in an MCP host that supports MCPB bundles, such as Claude Desktop. The host reads the launch command from the bundle's own manifest, so there is no command to copy. Before opening it, check the file's SHA-256 matches the one the MCP registry declares for it, fa576058086607914d32d55eabd80871f8f332968a34fcd67f5b3ae7e566b44d; the commands to do that are on this page. If it does not match, do not open it.
mcpb · flintrail.mcpb
Download bundleCheck the download matches the SHA-256 the MCP registry declares before you open it. If it does not match, do not open the file.
SHA-256
fa576058086607914d32d55eabd80871f8f332968a34fcd67f5b3ae7e566b44d
macOS / Linux
echo "fa576058086607914d32d55eabd80871f8f332968a34fcd67f5b3ae7e566b44d flintrail.mcpb" | shasum -a 256 -c
Windows (PowerShell)
(Get-FileHash -Algorithm SHA256 .\flintrail.mcpb).Hash -eq "fa576058086607914d32d55eabd80871f8f332968a34fcd67f5b3ae7e566b44d"
Run it in the folder you saved the bundle to, then open the file with an MCPB-capable host such as Claude Desktop.
What is the Flintrail MCP server?
Flintrail is an MCP server listed in the public MCP registry as com.soflution/flintrail. Drive a real Chrome live, record a flow once, replay it in milliseconds without an LLM. This page covers its MCPB bundle (https://github.com/Soflutionltd/flintrail/releases/download/v1.3.0/flintrail.mcpb).
Is the Flintrail MCP server safe to use?
Flintrail scores 48 out of 100 on VerifyMCP. It declares no install or post-install scripts. 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 Flintrail MCP server expose?
Flintrail exposes 19 tools: fl_open, fl_adopt, fl_act, fl_login, fl_snapshot, and 14 more. Their descriptions and schemas cost roughly 1,262 tokens of context every time the server is loaded.
What licence is the Flintrail MCP server under?
Flintrail declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.