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Thirteen tasks, TDD throughout, stdlib only. parse is pure and offline:
the trusted-relay boundary arrives as an argument rather than a config
read, so the whole extractor is testable against fixtures with no setup.
The plan carries three checks that are not ordinary unit tests. The
Received-chain task has a mutation step, because walking one hop too far
reports an innocent third party named in a header the attacker wrote, and
a test that cannot fail would not protect against it. The URL task runs
the suite with sockets refused, so the never-fetch rule is verified
rather than read. And every fixture is asserted to leave no recipient
address anywhere in the manifest.
init exists because parse refuses to guess the trust boundary. It asks
for CIDRs, offers a static table of known provider ranges, or reads the
chain of a known-good sample and lets the user pick their own hops. A
pure builder with the prompts and the flags as two front ends over it, so
--non-interactive covers agent-driven setup and the config writing is
tested without a terminal. Re-running shows what is already configured
and asks; either route backs the old file up first and preserves sections
this run does not set, so a later init cannot silently drop a MISP key.
The prompts themselves are hand-tested rather than driven from stdin: a
test there would assert the wording it was written against and break on a
rewording that improved it. Task 12 is the checklist, weighted towards
wrong answers.
Redirect chains were missing from the first draft of the plan and are now
specified: a parameter whose value is itself a URL is recovered as an
indicator while every other value stays redacted, which resolves the
conflict between reporting the destination and never publishing a
tracking token.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KphFXTc2QajxXsHWyvGJ4R
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