Knowledgebse Generation skills and tooling.

.context/CONSTITUTION.md

@@ -98,6 +98,15 @@ Leave the system in a better state than you found it.
   no exceptions, no "non-trivial" qualifier. Even one-liner fixes
   need a spec for traceability. Use `/ctx-commit` instead of raw
   `git commit`.
+- [ ] **Git is required.** Every `ctx` project must live in a git
+  working tree. `ctx init` and every non-administrative
+  subcommand refuse to operate when `<projectRoot>/.git` is
+  absent. Rationale: ctx's persistent-memory promise is
+  dishonest without an undo layer; agent-driven file
+  operations need `git reflog` as the safety net. The only
+  opt-outs are help-shaped / diagnostic commands
+  (`--help`, `--version`, `ctx system bootstrap`). Per
+  `specs/require-git.md`.
 
 ## TASKS.md Structure Invariants
 

.context/CONVENTIONS.md

@@ -23,6 +23,13 @@ DO NOT UPDATE FOR:
 - **Package name = folder name**: Go canonical pattern
   - `package initialize` in `initialize/` folder
   - Never `package initcmd` in `init/` folder
+- **Go package names: lowercase, no underscores, no
+  mixedCaps**: per the [Effective Go](https://go.dev/blog/package-names)
+  guidance and the stdlib precedent (`strconv`, `httptest`,
+  `bufio`). Apply to the directory too — `internal/flagbind/`,
+  not `internal/flag_bind/`. Filenames may use underscores
+  (`foo_test.go` is canonical); package names may not. When in
+  doubt, find the closest stdlib analogue and copy its shape.
 - **Maps reference constants**: Use constants as keys, not literals
   - `map[string]X{ConstKey: value}` not `map[string]X{"literal": value}`
 
@@ -220,6 +227,22 @@ DO NOT UPDATE FOR:
 - **Error constructors in internal/err**: Never in per-package err.go
   files — eliminates the broken-window pattern where agents add local
   errors when they see a local err.go exists
+- **Identity sentinels are `entity.Sentinel` consts, not
+  `errors.New`**: Declare `errors.Is` targets as
+  `const ErrX = entity.Sentinel(text.DescKey...)`. The
+  user-facing text lives in `commands/text/errors.yaml` keyed by
+  `err.<pkg>.<name>`; the sentinel's `Error()` resolves it via
+  `desc.Text` at call time. Never write
+  `var ErrX = errors.New("english")` — the English leaks into
+  `.Error()` output and bypasses localization. Never add an
+  `ErrMsg* = "english"` const layer in `internal/config/<pkg>/`
+  to back the sentinel; that layer is dead text once the typed
+  Sentinel does the lookup itself.
+- **Parameterised errors use typed structs**: When the error
+  needs to carry fields (path, name, etc.), define a struct in
+  `internal/err/<area>/` with a pointer-receiver `Error()` and
+  optional `Is(error) bool` for sentinel-compatibility. See
+  `internal/err/context.NotFoundError` for the canonical shape.
 
 ## CLI Structure
 
@@ -270,4 +293,5 @@ DO NOT UPDATE FOR:
   capitalization would otherwise apply: write `CONSTITUTION.md`, not
   CONSTITUTION.Md. The title-case engine refuses to capitalize lowercase tokens
   following a literal . dot, but explicit backticks remain the clearest signal.
-- New editor integrations include an MCP-merge test covering: create / empty file / preserve existing keys / skip when registered / reject malformed JSON
+- New editor integrations include an MCP-merge test covering: create / empty
+  file / preserve existing keys / skip when registered / reject malformed JSON

.context/DANGER-ZONES.md

@@ -129,7 +129,7 @@ Enriched 2026-04-03 via GitNexus (blast radius verified)._
 
 1. **DiscoverPath coupling** - 7 direct callers across 4 modules
    (Memory, Publish, Session, Ctximport). All 6 memory subcommands
-   + check_memory_drift hook depend on this. 7 execution flows.
+   + checkmemorydrift hook depend on this. 7 execution flows.
    - Blast radius: d=1: 7, flows: 7, modules: 4
    - Risk: CRITICAL (enriched 2026-04-03 via GitNexus)
    - Modification advice: slug format change breaks all memory

.context/DETAILED_DESIGN-cli.md

@@ -169,7 +169,7 @@ core/ taxonomy per Decision 2026-03-06. Key structural changes:
 - **journal**: consumed recall (Decision 2026-03-30); subcommands:
   source, importer, lock, unlock, sync, site, obsidian
 - **system**: expanded to 34 hook subcommands including various
-  check_*, block_*, post_commit, mark_*, cleanup_*
+  check_*, block_*, postcommit, mark_*, cleanup_*
 - **recall**: deleted — merged into journal
 
 **Danger zones**:

.context/DETAILED_DESIGN-mcp.md

@@ -294,8 +294,8 @@ config/mcp/tool (handler side)
 | ctx_watch_update | No | Apply structured updates |
 | ctx_compact | No | Archive completed tasks |
 | ctx_next | Yes | Next pending task |
-| ctx_check_task_completion | Yes | Match action to tasks |
-| ctx_session_event | No | Signal session start/end |
+| ctx_checktaskcompletion | Yes | Match action to tasks |
+| ctx_sessionevent | No | Signal session start/end |
 | ctx_remind | Yes | List pending reminders |
 
 ## Resources (9 total)

.context/EXTENSION-POINTS.md

@@ -30,7 +30,7 @@ Registration: `journal/parser` auto-detection via `Matches(path)`
 Registered implementations:
 1. `ClaudeCode` - `internal/journal/parser/claude.go`
 2. `Copilot` - `internal/journal/parser/copilot.go`
-3. `CopilotCLI` - `internal/journal/parser/copilot_cli.go`
+3. `CopilotCLI` - `internal/journal/parser/copilotcli.go`
 4. `MarkdownSession` - `internal/journal/parser/markdown.go`
 
 How to extend: implement SessionParser interface with `Matches()`
@@ -76,7 +76,7 @@ Registration: `internal/cli/setup/core/*` packages
 5 tool-specific deployers:
 1. `agents/` - AGENTS.md deployment
 2. `copilot/` - GitHub Copilot (instructions + VS Code MCP)
-3. `copilot_cli/` - Copilot CLI (instructions, skills, agent, MCP)
+3. `copilotcli/` - Copilot CLI (instructions, skills, agent, MCP)
 4. (Claude Code via initialize, not setup)
 5. (Cursor/Aider/Windsurf via simpler paths)
 

.context/HANDOVER-2026-04-22.md

@@ -80,11 +80,11 @@ Sharpened the "explicit declaration or nothing" model:
 
 `internal/cli/system/core/check/full_preamble.go` now returns
 `(input, sessionID, ctxDir, stateDir, ok)`. All 16 callers
-updated. 4 hooks (`check_persistence`, `check_memory_drift`,
-`check_ceremony`, `check_journal`) had their redundant
+updated. 4 hooks (`checkpersistence`, `checkmemorydrift`,
+`checkceremony`, `checkjournal`) had their redundant
 `errors.Is(ctxErr, ErrDirNotDeclared)` blocks deleted and use the
 preamble's `ctxDir` directly. The 3 non-FullPreamble hooks
-(`context_load_gate`, `check_context_size`, `heartbeat`) had
+(`contextloadgate`, `checkcontextsize`, `heartbeat`) had
 their `ErrDirNotDeclared` branches replaced with a defensive
 "unreachable but log loudly" fallback after the `state.Initialized`
 gate.