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chunk-invariance

Checks whether your streaming redactor leaks a secret split across chunks; writes a pytest for it.

Connector by ninadphalak · GitHub account verified by the MCP Registry

IndexedApache-2.0Local (stdio)★ 13
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Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

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About

Checks whether your streaming redactor leaks a secret split across chunks; writes a pytest for it.

Use cases: testing, security-scanning

Reviews

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Tools
2 read · 1 write · 0 delete
Secrets
None asked for
Install scripts
None found
Runs as
Python package

Tools by what they do 3

Read from the source code; the running server may list different tools.

Read 2 · Look things up without changing anything.

  • check_stream_filter
  • explain

Write 1 · Create, change, send or run things.

  • write_regression_test

Network hosts it talks to 1

  • github.com · found in code

Tools (3)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • check_stream_filter

    Check whether the user's streaming filter leaks or changes values that are split across chunks. Streams each sample through the filter in every two-part split (or more parts) and compares the joined output with filtering the whole text at once. Returns PASS or FAIL, the first failing split in plain words (which value came out unredacted), the number of splits checked, and how to fix it. It imports and runs the user's own code from project_dir on this machine, in a separate process that is stopped after timeout_seconds. The server makes no network calls and writes no files. Its result repeats t…

  • explain

    Explain in one paragraph why filtering a stream chunk by chunk leaks values cut across chunks, with an example and the fix. No inputs.

  • write_regression_test

    Write a pytest file that runs chunk_invariance.assert_chunk_invariant on the user's streaming filter for each sample, so their CI keeps checking that values split across chunks cannot leak. Takes the same inputs as check_stream_filter, first checks that the target imports, and returns the file text with a suggested file name and whether it passes today. Save it in the user's tests folder; the test environment needs `pip install chunk-invariance`. It imports and runs the user's own code from project_dir on this machine, in a separate process that is stopped after timeout_seconds. The server mak…

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    Featured in

    Signals

    Stars
    13
    Forks
    4
    Open issues
    7
    Weekly downloads
    140
    Last commit (this folder)
    Oct 19, 2026 (12 days ago)
    Last release
    Oct 19, 2026 (12 days ago)
    Last package publish
    Oct 19, 2026 (12 days ago)

    From GitHub (fetched Oct 24, 2026) and the package registry.

    Details

    Registry name
    io.github.ninadphalak/chunk-invariance
    Version
    0.2.0
    Auth
    No auth
    Packages
    pypi chunk-invariance
    License
    Apache-2.0
    Repository
    github.com/ninadphalak/LLM-Shield-Proxy
    Website
    github.com/ninadphalak/LLM-Shield-Proxy/tree/main/chunk-invariance
    First seen
    Oct 24, 2026
    Last checked
    Oct 24, 2026
    Source
    Official MCP Registrygithub-graphql

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    Cite this page

    chunk-invariance MCP server. Agent Mart. https://agentmart.dev/connectors/ninadphalak-chunk-invariance (last updated 2026-10-24)