brokerd makes a socket's directory 0700. With a socket directly in / it would
chmod /, and through a symbolic link it would change the link's target. Both
are now refused at start with #brokerd-start-failed. Without the fix the link
case started and served, with the shared directory made private.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
M3a review findings 3, 5 (the cast), 6, 7 (brokerd), 11. A config, directory
or socket failure at start now ends with docs/runbook.md#brokerd-start-failed,
and losing a listener with #brokerd-listener-lost; both entries are new.
Threads start through thread::Builder, so a refused thread is reported
instead of silently killing a listener; an aborted connection no longer stops
the daemon. brokerd reads args_os and keeps the config path as a path. The
"requester went away" result is recorded at the time it happens.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Every request is recorded, unreadable state is recorded as secret, a
refusal that cannot be recorded is an error, and the other cases the
brokerd reference settled. The audit-unavailable and
broker-state-damaged entries name the new messages; egress lists the
development calls to straylight.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
brokerd internals: the ledger lock over the audit writer and session
state, the pending table's take-it-and-answer rule, sticky
audit_unavailable after a failed write, pure policy functions with an
Ask type that only redecide turns into a Decision, how a waiting
thread detects a lost connection without peek, fixed RunError text.
Approvals: bxctl chat fetches the block from brokerd by id, shows the
parsed arguments with invisible and bidi characters escaped, asks for
the approval id instead of y, and escapes model text. A tool_denied
event carries the reason to the owner.
Also: BrokerPort timeouts, tests for runbook pointers and concurrency,
threat-model notes, P14 for broker/sessions in the brief's State list.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Policy: a deny grant must apply at every taint; a result's label is
combined over all matching grants and the longest matched path wins
within a mode; a grant of / is invalid.
Audit: a recovered line need not fail to parse; the writer never goes
back to an earlier day's file; --accept-break verifies the whole log
and the break record's fields are all checked, with a seq counted from
lines; the Approval record carries the re-decision's grant and state;
calls with no Result are reported.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Split M3 into M3a and M3b, record the M3 design decisions, propose P13
(tool image built by Nix, named by digest), and add docs/runbook.md with an
entry for every fail-closed state, including loopd's existing ones.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
kyleandClaude Opus 5.5