3ad75a6d59
* enhance(#4285): resolve context-monitor fire-points from .planning/config.json
The monitor's WARNING (35%) and CRITICAL (25%) fire-points were module
constants, so the only way to tune them was editing gsd-context-monitor.js —
a file in the MANAGED hooks registry, whose body the next install re-stages,
silently discarding the edit. The alternative was turning the safety net off.
Both are now readable from the config block the hook already opens:
hooks.context_warning_threshold and hooks.context_critical_threshold. Absent
keys resolve to today's 35/25, so every existing project is byte-identical.
Resolution is total and never throws — this hook must not block the tool call
it rides in on. A value is usable only if Number.isFinite (type-strict, so the
string "30" and true are rejected) and inside the 0-100 domain of the
remaining_percentage it is compared against; anything else falls back to the
default. The PAIR falls back together: critical >= warning has no coherent
reading, and honouring one side silently picks which of the operator's two
numbers to discard. That also covers a single override contradicting the other
key's default.
config-set validates the domain per key so accept and honour agree, but
deliberately does not enforce the pair — it writes one key per call, so a
two-step retune is transiently inconsistent on disk and refusing it there
would block a legitimate configuration.
Registration follows the statusline.show_git precedent: schema manifest plus
src/config.cts validation, not config-defaults.manifest.json and not
buildNewProjectConfig — emitting 35/25 into every new project would pin the
defaults at creation time for a setting nobody has tuned.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DsUAawHKUy9pCpnye1Jzd2
* enhance(#4285): address Codex review — per-key fallback docs, discriminating tests
Codex full-PR review (gpt-6-astra, read-only) returned five findings. Each was
verified against source before acting; all five are real.
1. docs/CONFIGURATION.md described the wrong fallback. An out-of-domain value
falls back PER KEY; both defaults apply only when the RESOLVED pair violates
critical < warning. warning 150 with critical 30 resolves to 35/30, not
35/25 — at remaining 28 that difference changes the severity emitted. The
table now states the two rules in the order they compose, and
docs/context-monitor.md gains the same worked example.
2. The inconsistent-pair test could not prove the CRITICAL side reverts: its
pair was 20/25, and 25 is already the default, so an implementation that
reset only `warning` passed it. A 45/50 pair — both halves away from their
defaults — now pins each side with its own reading, and an equal 45/45 pair
pins that the rule is strict (`<`, not `<=`).
3. The rejection table's rows could not tell rejection from acceptance: an
accepted -5 pairs with the default critical 25, trips the pair check, and
produces the same silence. Two rows now separate those: a below-domain
critical must escalate remaining 20 to CRITICAL (proving -5 was rejected,
not honoured), and an unusable critical beside a usable warning 45 must
still fire WARNING at remaining 40 (proving per-key fallback rather than
reset-both). The over-claiming comments are narrowed to what each row
actually shows.
4. Scope, reproduced rather than assumed: config-set writes through
planningDir(), so under GSD_WORKSTREAM it lands in
.planning/workstreams/<name>/config.json while this hook reads only
<cwd>/.planning/config.json. That is the pre-existing root-only scope
hooks.context_warnings has always had, but this PR advertises the setter
route, so both docs now say the keys are root-project settings.
5. Four other English docs still stated 35/25 as fixed: the REQ-CTX-02/03
requirements fragment, ARCHITECTURE.md's hook table and threshold table,
and INVENTORY.md's hook row. All now name them as defaults and point at the
config keys; docs/FEATURES.md is regenerated from its fragment via
scripts/gen-features.cjs --write, not hand-edited.
Four new mutations, each reverted after: resetting only the warning half on an
inconsistent pair (1 red), resetting both on any unusable key (1), dropping the
>= 0 bound (1), and accepting critical == warning (1). perf-317 is 116/0.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DsUAawHKUy9pCpnye1Jzd2
* enhance(#4285): tighten claims after Codex round 2 — scoped paths, one more discriminator
Confirmation round found no runtime defect and confirmed the five round-1 fixes
landed. Four precision items, all real, all fixed here.
1. The scoped-write note named the wrong path for GSD_PROJECT. planningDir()
composes three distinct shapes, confirmed by running config-set under each:
.planning/<project>/config.json, .planning/workstreams/<ws>/config.json, and
.planning/<project>/workstreams/<ws>/config.json. docs/context-monitor.md
now tabulates all four cases instead of collapsing them into one.
2. The 45/50 silence row asserted empty stdout without pinning the exit code.
runMonitorRaw turns a spawn failure, a non-zero exit or a timeout into empty
stdout as well, so the row could have passed on a dead child. It asserts
exitCode === 0 first now, like the equal-pair row already did.
3. The sibling row's message claimed it proved critical fell back to 25. It
does not: coercing '30' to 30 yields WARNING at remaining 40 too, so the row
pins the WARNING side surviving and nothing more. Message narrowed, and a
new row reads the same config at remaining 28, where the two candidate
resolutions diverge — rejected gives (45, 25) and WARNING, coerced gives
(45, 30) and CRITICAL. Mutation-verified: swapping Number.isFinite for the
coercing global reds it.
4. "Accept and honour must agree" was too absolute in the src/config.cts and
tests/config.test.cjs comments. The agreement holds on the DOMAIN and per
key: an accepted value can still lose to the hook's pair check at read time,
and a scoped write never reaches the hook at all. Likewise a two-step retune
only CAN be transiently inconsistent — 35/25 to 20/10 is valid throughout if
critical moves first — so the docs now say what a setter-side pair check
would actually cost: rejecting that intermediate write and forcing an order.
The same over-absolute phrasing is in b7d179c89's message, which is left as
written rather than rewriting history; this commit and the PR body carry the
precise claim.
perf-317 117/0, config 192/0, config-field-docs 47/0, features-index-gate 84/0,
lint:ci clean cold.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DsUAawHKUy9pCpnye1Jzd2
* chore(#4285): add changeset
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DsUAawHKUy9pCpnye1Jzd2
* enhance(#4285): address review — planning-config rows, resolveThresholds properties
Two Minor findings from the maintainer review, no behaviour change.
Minor 1: gsd-core/references/planning-config.md's "Hook Fields" table gains
rows for hooks.context_warning_threshold and hooks.context_critical_threshold,
in that table's 5-column form, carrying the same per-key-fallback,
pair-reversion and root-config-scope claims docs/CONFIGURATION.md already
makes. hooks.workflow_guard's absence from that table is pre-existing and
out of scope here.
Minor 2: resolveThresholds() gets fast-check property coverage, which ADR 456
requires of a threshold/limit contract. Reaching it needed a require-time
seam: the resolver was previously observable only by spawning the hook, and a
subprocess per case cannot drive 200 runs — the same conclusion CONTEXT-INDEX
records for the ROADMAP Requirements parser. The stdin adapter therefore moves
into main() behind `require.main === module`, mirroring
gsd-cursor-subagent-start.js and gsd-statusline.js, and module.exports exposes
the resolver plus both default constants so a test asserts fallback against
the source of truth rather than a second copy of 35/25. Spawned behaviour is
unchanged: the 10s stdin timeout still arms per invocation (stdinTimeout is
now a module-scope let assigned in main(), still cleared by the end handler),
and the try/catch crash(ON_CRASH) path is untouched.
Seven properties: totality, ordering, exactness, togetherness, non-vacuity,
per-key fallback, non-object argument. Exactness is stated PER KEY — a mixed
result (one key honoured, one fallen back) is legal and is the documented
contract; the property falsified a per-pair phrasing of it in 4 runs.
Verified: cold lint:ci 0; perf-317 file 125/0; seven mutations killed and
restored, one of which (upper bound widened to 120) is invisible to the 17
hand-written cases and caught only by a property.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UZw5UhR474YLyE4knjHrte
* enhance(#4285): close the Codex-found gap in the property coverage
Codex whole-PR review of round 3 returned no Blocker and no Major. Two items,
both in the tests added this round, both verified against source before acting.
Minor — the per-key fallback property was asymmetric: it required a usable
warning to survive an unusable critical, but never the reverse. A resolver
that reverted BOTH keys the moment warning was unusable passed all seven
properties. Reproduced exactly: that mutant answers 35/25 for
{warning: 150, critical: 30} where the resolver answers 35/30, and the file
stayed green at 125/0. The mirrored property closes it — with the mutant
re-applied it is now the single failing row, and it is the only row that
fails, so it is load-bearing rather than incidental.
Nit — the ordering property's comment credited it with catching a
half-honoured pair, which it does not: 45/50 "repaired" by resetting only
critical yields 45/25, perfectly ordered. That case belongs to togetherness.
The same comment claimed the behavioural rows sample an inconsistent pair at
exactly one point; stale — they cover 20/25, 45/50 and the 45/45 equality
boundary. Both claims corrected in place.
Verified: cold lint:ci 0; perf-317 file 126/0; the mutant above killed by the
new property alone and the hook restored byte-identical afterwards.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UZw5UhR474YLyE4knjHrte
* enhance(#4285): name the installed-monitor prerequisite; close the negative-critical gap
Second Codex whole-PR pass, run because the base moved: the author's three
"Update branch" merges pulled ~26 upstream commits in, so the previously
reviewed diff sat on a base that no longer exists. No Blocker, no Major, two
Minor — both verified against source before acting.
Minor 1, and only reachable because of what the merge brought in: #2586
(03738824d) landed in that window and stops staging
hooks/gsd-context-monitor.js for Codex, since the metrics bridge it reads is
written only by hooks/gsd-statusline.js, which Codex never installs
(bin/install.js: "gsd-context-monitor.js is deliberately NOT copied for
Codex"). These two keys are read by that hook and nothing else, so on such a
runtime config-set stores and validates them and nothing consumes them — a
claim the docs this PR adds did not make. docs/context-monitor.md now carries
the explanation and both key tables carry a clause pointing at it; the FEATURES
and INVENTORY entries already link through to those two files, so they are not
edited again. The changeset says it too, because it is user-facing.
Accepting the keys on every runtime is kept deliberately: config is shared
across runtimes, so validation stays runtime-independent and the runtime
caveat lives in documentation rather than in the setter.
Minor 2: the per-key fallback property's junk generator had no negative arm,
though its mirror did — and that asymmetry hid a gap. A resolver reverting
BOTH keys whenever critical is negative answers 35/25 for {45, -5} where the
resolver answers 45/25, and it passed all 126 tests. With the negative arm
added it is the single failing row.
Verified: cold lint:ci 0; perf-317 126/0; both mutants above killed and the
hook restored byte-identical; 538/0 across the config, changeset, doc-parity
and emitted-attribution gates.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UZw5UhR474YLyE4knjHrte
* enhance(#4285): refuse the two dead threshold endpoints; resolve absent keys
Maintainer review round 2 raised two Minors and a nit.
Minor 1 — `hooks.context_warning_threshold: 0` was accepted and stored but can
never take effect: `critical < warning` must hold and both sides are clamped to
0-100, so nothing can sit below a warning of 0. Verifying it surfaced the MIRROR
case the review did not name: `critical: 100` is equally dead, since nothing can
sit above it. Both confirmed against the real resolver for partners {absent, 0,
50, 100}, with 0.001 and 99.999 honoured as controls.
`config-set` now refuses both, because storing a value the reader always
discards is the accept-then-discard shape this codebase refuses elsewhere. The
hook is unchanged and still total — it degrades to defaults rather than
throwing, so a project that already carries one of these on disk still loads.
The old "accepts the domain bounds 0 and 100" row asserted the misleading half
and is replaced by tables that make the asymmetry the point (0 is legal for
critical and illegal for warning; 100 is the reverse), plus a control row so
"refuse both endpoints outright" would not pass in its place.
Minor 2 — the keys are absent from config-defaults.manifest.json /
buildNewProjectConfig where the sibling `hooks.context_warnings` lives. Kept
that way: buildNewProjectConfig writes a hooks object into every NEW project's
config.json, which would freeze today's fire-points as an explicit per-project
override everywhere — the opposite of this PR's premise. But the underlying
complaint was real, so the actual symptom is fixed: `config-get` on an absent
key returned "Key not found" while the hook silently used 35/25. It now resolves
through SCHEMA_DEFAULTS. Restated rather than derived because CONFIG_DEFAULTS is
re-exported flattened and has no `hooks` member at runtime; the one resulting
copy of 35/25 outside the hook is pinned against the hook's exported constants
by a drift test (red-checked: moving the literal to 40 reds it).
Nit — PR-body counts unverifiable from the diff. Noted, no code change.
Codex round 3 then found a broken doc link (`context-monitor.md` resolved
inside gsd-core/references/, where it does not exist; the emitted tree's own
convention is `../../docs/...`) and a stale comment still describing the
manifest-derived approach I had backed out. Both fixed. It also corrected my
rationale on a point of fact: manifest entries alone would NOT have reached new
project configs, since buildNewProjectConfig builds its own literal — the
freezing argument applies to that function, not to the manifest. The comment now
says so rather than running the two together.
Verified: cold lint:ci 0; full suite 36,082 / 0 fail before these two fixes,
config + perf-317 321/0 after; drift pin red-checked.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UZw5UhR474YLyE4knjHrte
---------
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
GSD Core
Git. Ship. Done.
English · Português · 简体中文 · 日本語 · 한국어
A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more.
What is GSD Core
GSD Core is a context-engineering and spec-driven development framework that drives AI coding agents (Claude Code, Codex, Antigravity CLI, Kimi CLI, Copilot, Cursor, and more) through a disciplined phase loop. It solves context rot — the quality degradation that accumulates as an AI fills its context window — by running all heavy research, planning, and execution work in fresh-context subagents while keeping your main session lean.
How it works
Each milestone repeats the same five-step loop, one phase at a time:
- Discuss — capture implementation decisions before anything is planned
- Plan — research, decompose, and verify the plan fits a fresh context window
- Execute — run plans in parallel waves; each executor starts with a clean 200k-token context
- Verify — walk through what was built; diagnose and fix before declaring done
- Ship — create the PR, archive the phase, repeat for the next one
Quickstart
npx @opengsd/gsd-core@latest
The installer prompts for your runtime (Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more) and whether to install globally or locally. The installer is required for cross-runtime compatibility — do not copy files from agents/ or commands/ directly.
On another runtime or without Node.js? See Install on your runtime.
Once installed, start a new project or onboard an existing repo:
/gsd-new-project # greenfield project
/gsd-onboard # existing codebase
New here? Follow Your first project for a guided walkthrough from install to first shipped phase, or Onboarding an existing codebase for brownfield setup.
Documentation
What's new in 1.7.0 → docs/whats-new-1.7.0.md
Tutorials — learning by doing:
How-to guides — task-focused recipes:
Reference — authoritative facts:
Explanation — concepts and design decisions:
Full index: docs/README.md. Other languages: 日本語 · 한국어 · Português · 简体中文.
Why it works
Most AI-coding setups fail at scale because context bloat silently degrades output quality, there is no shared memory between sessions, and nothing verifies that code actually works. GSD Core solves all three: heavy work runs in fresh subagents, structured artifacts like STATE.md and CONTEXT.md survive session boundaries, and the verify step walks through what was built and generates fix plans before a phase is declared done. See docs/explanation/context-engineering.md for the full reasoning.
Troubleshooting? See docs/how-to/recover-and-troubleshoot.md.
Community
| Project | Platform |
|---|---|
| gsd-opencode | Original OpenCode port |
| Discord | Community support |
Star History
License
MIT License. See LICENSE for details.
Claude Code is powerful. GSD Core makes it reliable.