Stock tclsh treats any leading-dash arg other than -encoding as argv for an
interactive/stdin session: on a console it hangs at a prompt, with piped stdin
it exits 0 silently ignoring the supposed one-liner. Agents habitually reach
for -e (perl/python/node reflex), wasting time waiting on hung processes.
- root AGENTS.md User Preferences: document the misparse, the correct patterns
(temp .tcl file or script via stdin) and the defensive stdin-redirect habit
- .claude/settings.json: PreToolUse hook denying Bash/PowerShell invocations
of tclsh with -e, anchored to command position (start/pipe/semicolon/paren)
so prose mentions in commit messages or grep args do not false-positive;
corrective guidance returned to the agent
- .gitignore: narrow the .claude ignore so shared settings.json is tracked
while session-local files stay ignored
- .fossil-settings: ignore-glob hand-derived per the no-negation rule
(.claude/* wholesale + explicit fossil add of settings.json), exception set
in AGENTS.md updated; fossil extras under-ignore check verified empty
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
- .fossil-settings/binary-glob set to '*': binary checkins (e.g zips) proceed without fossil
warnings/prompts; the aim of an eventually binary-free tree (G-004/G-005/G-006) is
agent/workflow policy, deliberately not enforced at the local VCS layer
- .fossil-settings/AGENTS.md: new "Commit warning suppression" contract documenting the above
- root AGENTS.md: LF preference clarified - converting CRLF text files to LF when editing is
correct (no CRLF preservation for diff-minimisation; preserve only deliberately mixed-ending
files or on explicit instruction); binary-checkin bullet notes the VCS-layer carve-out
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
Two git/fossil divergence classes discovered during the tracked-set
verification: nested .gitignore files (e.g. in the project-layout templates)
are honoured by git as nested ignores of the outer repo but invisible to
fossil, leaving template content untracked in git yet managed by fossil;
and git ignore matching is case-insensitive on Windows (core.ignorecase)
while fossil globs are case-sensitive (a todo.txt pattern hits vendored
TODO.txt in git only). Both recorded in the coexistence contract with the
prescribed treatment.
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
git tracked fossil's generated checkout artifacts (manifest, manifest.tags,
manifest.uuid - regenerated on every fossil checkin/checkout per the
versioned 'manifest' setting value 'rut'), which would churn as soon as
fossil commits begin. They are now untracked and git-ignored with
root-anchored patterns (nested manifest-named files elsewhere are real
content and stay tracked). Fossil control files (.fslckout/_FOSSIL_/
*.fossil) were already correctly git-ignored, and .fossil-settings/
.fossil-custom correctly git-tracked.
New .fossil-settings/AGENTS.md is the canonical home of the git+fossil
contract: which files each system must not track, the ignore-glob
derivation rules (no negation -> wholesale-ignore + explicit fossil add of
tracked exceptions; directory pruning; * crossing /; */ variants for
match-anywhere patterns; default dotfile skipping), and the verification
procedure any future "sync the ignores" request must follow (fossil extras
against git check-ignore, and a tracked-set comparison bounded to the
documented exceptions). The ignore-glob header now points there instead of
duplicating the rules; root AGENTS.md Child DOX Index gains the entry.
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
Julian Noble