Files
msd-core/gsd-core/references/phase-argument-parsing.md
0xdhx 8a5166598c fix(#4830): re-land #4768's letter-suffix phase-id fix and its lint-phase-id-drift ratchets on current next (#4873)
* fix(#4830): re-land #4768's letter-suffix phase-id fix and its lint-phase-id-drift ratchets on current next

Commit 740ba0d8a (#4781) removed every change #4768 had merged for #4748:
the first-non-digit split at execute-phase.md's two arithmetic sites, the
init-emitted `padded_phase` the REVIEW.md lookup binds instead of
`printf "%02d"`, the canonical-grammar extractions in autonomous.md and
plan-review-convergence.md, the `.changeset/zesty-wolves-tumble.md`
fragment, and the three lint-phase-id-drift ratchets with their tests.
The guard and the code it guarded left together, so nothing went red.

This is a cherry-pick of 092d9256b onto current `next`, resolved against
the #4683 threat-id fields on execute-phase.md's Parse-JSON line, with the
changeset `pr:` reset to the placeholder and the compact-content benchmark
baseline regenerated against the current base.

(cherry picked from commit 092d9256b8)

Emitted-Drift-Ack-Growth: autonomous.md — restores #4768's canonical-grammar extraction and its explanatory comment for --from/--to/--only
Emitted-Drift-Ack-Growth: execute-phase.md — restores #4768's first-non-digit split at two arithmetic sites and the padded_phase binding for the REVIEW.md lookup
Emitted-Drift-Ack-Growth: plan-review-convergence.md — restores #4768's canonical-grammar phase extraction and its comment
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AX7LXxc3uAkGki6iaYiAMP

* chore(#4830): set changeset fragment pr to 4873

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-20 00:01:21 -04:00

1.7 KiB

Phase Argument Parsing

Parse and normalize phase arguments for commands that operate on phases.

Extraction

From $ARGUMENTS:

  • Extract phase number (first numeric argument)
  • Extract flags (prefixed with --)
  • Remaining text is description (for insert/add commands)

Using gsd-tools

The find-phase command handles normalization and validation in one step:

PHASE_INFO=$(gsd_run query find-phase "${PHASE}")

Returns JSON with:

  • found: true/false
  • directory: Full path to phase directory
  • phase_number: Normalized number (e.g., "06", "06.1")
  • phase_name: Name portion (e.g., "foundation")
  • plans: Array of PLAN.md files
  • summaries: Array of SUMMARY.md files

Manual Normalization (Legacy)

Zero-pad the leading integer to 2 digits. Preserve a letter suffix and any dotted segments — the canonical grammar in src/phase-id.cts (normalizePhaseName): 8 → 08, 2.1 → 02.1, 3A → 03A, 23.1.2 → 23.1.2.

# Normalize phase number
# #4748: one branch for the whole canonical token — digits, optional [A-Z],
# dotted segments. Pad through $((10#…)) so an already-padded `08` is not read
# as octal by printf; anything non-canonical passes through untouched.
if [[ "$PHASE" =~ ^([0-9]+)([A-Z]?)((\.[0-9]+)*)$ ]]; then
  PHASE_INT=${BASH_REMATCH[1]}
  PHASE=$(printf "%02d" "$((10#$PHASE_INT))")${BASH_REMATCH[2]}${BASH_REMATCH[3]}
fi

Validation

Use roadmap get-phase to validate phase exists:

PHASE_CHECK=$(gsd_run query roadmap.get-phase "${PHASE}" --pick found)
if [ "$PHASE_CHECK" = "false" ]; then
  echo "ERROR: Phase ${PHASE} not found in roadmap"
  exit 1
fi

Directory Lookup

Use find-phase for directory lookup:

PHASE_DIR=$(gsd_run query find-phase "${PHASE}" --raw)