feat(spec): extract v0.1.0 spec artifacts

README.md

@@ -4,6 +4,15 @@ Open interchange format contract for coding-agent session trails.
 
 This repository contains the Agent Trail specification, JSON Schema artifacts, fixtures, and format ADRs.
 
+## Repository Map
+
+- [`spec/v0.1.0/`](./spec/v0.1.0/) - frozen v0.1.0 specification content split by major section.
+- [`spec/draft/`](./spec/draft/) - current draft specification content.
+- [`spec.md`](./spec.md) - compatibility index for legacy monorepo `spec.md` anchors.
+- [`schema/v0.1.0.json`](./schema/v0.1.0.json) - frozen v0.1.0 JSON Schema artifact.
+- [`schema/draft.json`](./schema/draft.json) - current draft JSON Schema artifact.
+- [`fixtures/validation/`](./fixtures/validation/) - validation conformance fixture corpus and manifest.
+
 ## Related Repositories
 
 Agent Trail is split across focused repositories:

fixtures/validation/hash-mismatch/content-hash-invalid-hex.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"},"content_hash":"not-a-valid-sha256-hex-digest"}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}

fixtures/validation/hash-mismatch/content-hash-mismatch.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"},"content_hash":"0000000000000000000000000000000000000000000000000000000000000000"}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000002","ts":"2026-05-17T14:00:07.000Z","payload":{"text":"hi"}}

fixtures/validation/hash-mismatch/trail-envelope-content-hash-mismatch.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"trail","schema_version":"0.1.0","id":"01HTRACE000000000000000001","ts":"2026-05-17T14:00:00.000Z","producer":"trail-cli/0.3.0","content_hash":"0000000000000000000000000000000000000000000000000000000000000000"}
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}

fixtures/validation/hash-vectors/absent-content-hash.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESSABSENTHASH000000001","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"00000000-0000-4000-8000-000000000288","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hashing inserts the pending sentinel when content_hash is absent"}}

fixtures/validation/hash-vectors/envelope-two-tier.trail.jsonl

@@ -0,0 +1,4 @@
+{"content_hash":"a55a96d3a19b624aa8f2e38337521046facf5a6f2a04c3f3c3f7a14880774443","id":"01HTRACE000000000000000201","meta":{"x-example/scope":"file"},"producer":"trail-cli/0.3.0","schema_version":"0.1.0","sessions":[{"agent":"codex-cli","id":"01HSESS0000000000000000201"}],"ts":"2026-05-17T14:10:00.000Z","type":"trail"}
+{"agent":{"name":"codex-cli"},"content_hash":"44b16ddea9fd914442eaf8f21c90b6f0eeb913ab499eb668a9c0c6e06b988522","id":"01HSESS0000000000000000201","meta":{"x-example/scope":"session"},"schema_version":"0.1.0","ts":"2026-05-17T14:10:01.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000201","ts":"2026-05-17T14:10:05.000Z","payload":{"text":"hash the envelope"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000202","ts":"2026-05-17T14:10:07.000Z","payload":{"text":"session first, envelope second"}}

fixtures/validation/hash-vectors/jcs-stress.trail.jsonl

@@ -0,0 +1,3 @@
+{"agent":{"name":"codex-cli"},"content_hash":"24b3a1d99f3e725092cd0126c7d9fb84246e467ec5d2d1fd416f462ae8a58e14","id":"01HSESS0000000000000000301","meta":{"x-example/ints":{"decimal":1.0,"exponent":1e3,"negative_zero":-0,"safe":9007199254740991,"zero":0},"x-example/text":{"controls":"line\nnext\tcell","escaped":"café","literal":"café"},"x-example/z":{"a":1,"b":2}},"schema_version":"0.1.0","ts":"2026-05-17T14:20:00.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000301","ts":"2026-05-17T14:20:05.000Z","payload":{"text":"tabs\tand\nnewlines"},"meta":{"x-example/order":{"z":"last","a":"first"}}}
+{"type":"agent_message","id":"01HEVTA0000000000000000302","ts":"2026-05-17T14:20:07.000Z","payload":{"text":"numbers and strings canonicalized"}}

fixtures/validation/hash-vectors/minimal-pending-roundtrip.trail.jsonl

@@ -0,0 +1,3 @@
+{"agent":{"name":"codex-cli"},"content_hash":"f215ed334d3928e1abde804f2c4a870431b18d4fa7d755ec94d94be2a6ddd06e","id":"01HSESS0000000000000000101","schema_version":"0.1.0","ts":"2026-05-17T14:00:00.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000101","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000102","ts":"2026-05-17T14:00:07.000Z","payload":{"text":"hi"}}

fixtures/validation/hash-vectors/multi-session-slice.trail.jsonl

@@ -0,0 +1,6 @@
+{"agent":{"name":"codex-cli"},"content_hash":"0805ade157038a1cbb2895c55383b39b5a42aaa7d6ccc164174c0b3346d8fc14","id":"01HSESS0000000000000000401","schema_version":"0.1.0","ts":"2026-05-17T14:30:00.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000401","ts":"2026-05-17T14:30:05.000Z","payload":{"text":"first group"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000402","ts":"2026-05-17T14:30:07.000Z","payload":{"text":"first reply"}}
+{"agent":{"name":"codex-cli"},"content_hash":"f7fe8ccdeaeddf70b868838614730c0a613d937bafeac48a42bb585e6df3ead7","fork_from":{"session_id":"01HSESS0000000000000000401"},"id":"01HSESS0000000000000000402","schema_version":"0.1.0","ts":"2026-05-17T14:31:00.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000403","ts":"2026-05-17T14:31:05.000Z","payload":{"text":"second group"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000404","ts":"2026-05-17T14:31:07.000Z","payload":{"text":"second reply"}}

fixtures/validation/hash-vectors/replacement-char.trail.jsonl

@@ -0,0 +1,3 @@
+{"agent":{"name":"codex-cli"},"content_hash":"594a06fa452fc097bce145be95dd614ddb81b6adf8fe2baf80cbe6e13fcaf4f2","id":"01HSESS0000000000000000501","schema_version":"0.1.0","ts":"2026-05-17T14:40:00.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000501","ts":"2026-05-17T14:40:05.000Z","payload":{"text":"decoded byte: �"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000502","ts":"2026-05-17T14:40:07.000Z","payload":{"text":"replacement character preserved"}}

fixtures/validation/hash-vectors/segment-chain-seq1.trail.jsonl

@@ -0,0 +1,3 @@
+{"agent":{"name":"codex-cli"},"content_hash":"b12c68969624665898a4e3ec4dc5c0d06f7a7f305f8f7b16e347e18ccd2f6e67","id":"01HSESS0000000000000000601","schema_version":"0.1.0","segment":{"seq":1},"session_uid":"01HZZZZZZZZZZZZZZZZZZZZ601","ts":"2026-05-17T14:50:00.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000601","ts":"2026-05-17T14:50:05.000Z","payload":{"text":"segment one"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000602","ts":"2026-05-17T14:50:07.000Z","payload":{"text":"continued later"}}

fixtures/validation/hash-vectors/segment-chain-seq2.trail.jsonl

@@ -0,0 +1,3 @@
+{"agent":{"name":"codex-cli"},"content_hash":"3a676114740d09c2620c1c5e106ea8066bfc3926e478faf5cabd0cedfff398ec","id":"01HSESS0000000000000000602","schema_version":"0.1.0","segment":{"prev_content_hash":"b12c68969624665898a4e3ec4dc5c0d06f7a7f305f8f7b16e347e18ccd2f6e67","seq":2},"session_uid":"01HZZZZZZZZZZZZZZZZZZZZ601","ts":"2026-05-17T14:55:00.000Z","type":"session"}
+{"type":"user_message","id":"01HEVTA0000000000000000603","ts":"2026-05-17T14:55:05.000Z","payload":{"text":"segment two"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000604","ts":"2026-05-17T14:55:07.000Z","payload":{"text":"chain verified"}}

fixtures/validation/invalid-graph/ambiguous-sequential-pairing-with-session-end.trail.jsonl

@@ -0,0 +1,5 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"tool_call","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"tool":"file_read","args":{"path":"a.txt"}}}
+{"type":"tool_call","id":"01HEVTA0000000000000000002","ts":"2026-05-17T14:00:06.000Z","payload":{"tool":"file_read","args":{"path":"b.txt"}}}
+{"type":"tool_result","id":"01HEVTA0000000000000000003","ts":"2026-05-17T14:00:07.000Z","payload":{"ok":true,"output":"b"}}
+{"type":"session_end","id":"01HEVTA0000000000000000004","ts":"2026-05-17T14:00:08.000Z","payload":{"reason":"complete"}}

fixtures/validation/invalid-graph/ambiguous-sequential-pairing.trail.jsonl

@@ -0,0 +1,4 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"tool_call","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"tool":"file_read","args":{"path":"a.txt"}}}
+{"type":"tool_call","id":"01HEVTA0000000000000000002","ts":"2026-05-17T14:00:06.000Z","payload":{"tool":"file_read","args":{"path":"b.txt"}}}
+{"type":"tool_result","id":"01HEVTA0000000000000000003","ts":"2026-05-17T14:00:07.000Z","payload":{"ok":true,"output":"b"}}

fixtures/validation/invalid-graph/branch-point-unknown-from-id.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"branch_point","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:01.000Z","payload":{"from_id":"01HEVTA0000000000000000002"}}
+{"type":"user_message","id":"01HEVTA0000000000000000002","ts":"2026-05-17T14:00:02.000Z","payload":{"text":"later"}}

fixtures/validation/invalid-graph/branch-summary-unknown-abandoned-branch-id.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"branch_summary","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:01.000Z","payload":{"abandoned_branch_id":"01HEVTA0000000000000000002","summary":"abandoned path"}}
+{"type":"user_message","id":"01HEVTA0000000000000000002","ts":"2026-05-17T14:00:02.000Z","payload":{"text":"later"}}

fixtures/validation/invalid-graph/duplicate-id.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:07.000Z","payload":{"text":"hi"}}

fixtures/validation/invalid-graph/duplicate-option-labels-mixed-ids.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_query","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"questions":[{"id":"ship","question":"Ship it?","options":[{"id":"yes-safe","label":"yes"},{"label":"yes","description":"Label-only yes"}]}]}}

fixtures/validation/invalid-graph/duplicate-option-labels.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_query","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"questions":[{"id":"ship","question":"Ship it?","options":[{"label":"yes","description":"Ship now"},{"label":"yes","description":"Ship later"},{"id":"stable-no","label":"no"},{"id":"stable-no-again","label":"no"}]}]}}

fixtures/validation/invalid-graph/duplicate-segment-seq.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"00000000-0000-4000-8000-000000000290","session_uid":"00000000-0000-4000-8000-000000000291","segment":{"seq":1},"ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"session","schema_version":"0.1.0","id":"00000000-0000-4000-8000-000000000292","session_uid":"00000000-0000-4000-8000-000000000291","segment":{"seq":1},"ts":"2026-05-17T14:05:00.000Z","agent":{"name":"codex-cli"}}

fixtures/validation/invalid-graph/duplicate-tool-result-for-id.trail.jsonl

@@ -0,0 +1,5 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"tool_call","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"tool":"file_read","args":{"path":"a.txt"}}}
+{"type":"tool_call","id":"01HEVTA0000000000000000002","ts":"2026-05-17T14:00:06.000Z","payload":{"tool":"file_read","args":{"path":"b.txt"}}}
+{"type":"tool_result","id":"01HEVTA0000000000000000003","ts":"2026-05-17T14:00:07.000Z","payload":{"for_id":"01HEVTA0000000000000000001","ok":true,"output":"hi"}}
+{"type":"tool_result","id":"01HEVTA0000000000000000004","ts":"2026-05-17T14:00:08.000Z","payload":{"for_id":"01HEVTA0000000000000000001","ok":true,"output":"again"}}

fixtures/validation/invalid-graph/envelope-not-at-line-1.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"trail","schema_version":"0.1.0","id":"01HTRACE000000000000000001","ts":"2026-05-17T14:00:00.000Z","producer":"trail-cli/0.3.0"}

fixtures/validation/invalid-graph/envelope-sessions-manifest-empty.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"trail","schema_version":"0.1.0","id":"01HTRACE000000000000000001","ts":"2026-05-17T14:00:00.000Z","producer":"trail-cli/0.3.0","sessions":[]}
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}

fixtures/validation/invalid-graph/envelope-sessions-manifest-multiple.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"trail","schema_version":"0.1.0","id":"01HTRACE000000000000000001","ts":"2026-05-17T14:00:00.000Z","producer":"trail-cli/0.3.0","sessions":[{"id":"01HSESS0000000000000000001","agent":"codex-cli"},{"id":"01HSESS0000000000000000002","agent":"codex-cli"}]}
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}

fixtures/validation/invalid-graph/envelope-without-session-header.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"trail","schema_version":"0.1.0","id":"01HTRACE000000000000000001","ts":"2026-05-17T14:00:00.000Z","producer":"trail-cli/0.3.0"}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}

fixtures/validation/invalid-graph/header-has-parent-id.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","parent_id":"01H0THER000000000000000001","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}

fixtures/validation/invalid-graph/multi-session-cross-group-parent.trail.jsonl

@@ -0,0 +1,4 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000E01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000E01","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"g1 msg"}}
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000E02","ts":"2026-05-17T14:05:00.000Z","agent":{"name":"claude-code"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000E02","parent_id":"01HEVTA0000000000000000E01","ts":"2026-05-17T14:05:05.000Z","payload":{"text":"ref g1"}}

fixtures/validation/invalid-graph/multi-session-orphan-prelude.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"user_message","id":"01HEVTA0000000000000000D00","ts":"2026-05-17T13:59:00.000Z","payload":{"text":"orphan"}}
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000D01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000D01","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"msg"}}

fixtures/validation/invalid-graph/multiple-envelopes.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"trail","schema_version":"0.1.0","id":"01HTRACE000000000000000001","ts":"2026-05-17T14:00:00.000Z","producer":"trail-cli/0.3.0"}
+{"type":"trail","schema_version":"0.1.0","id":"01HTRACE000000000000000002","ts":"2026-05-17T14:00:00.000Z","producer":"trail-cli/0.3.0"}
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}

fixtures/validation/invalid-graph/non-interoperable-number.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"00000000-0000-4000-8000-000000000288","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"agent_message","id":"00000000-0000-4000-8000-000000000289","ts":"2026-05-17T14:00:01.000Z","payload":{"text":"captured source id"},"source":{"agent":"codex-cli","raw":{"snowflake":9007199254740993}}}

fixtures/validation/invalid-graph/non-monotonic-event-ts.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"user_message","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"hello"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000002","parent_id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:04.999Z","payload":{"text":"hi"}}

fixtures/validation/invalid-graph/out-of-order-segment-seq.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"00000000-0000-4000-8000-000000000293","session_uid":"00000000-0000-4000-8000-000000000294","segment":{"seq":2,"prev_content_hash":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"},"ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"session","schema_version":"0.1.0","id":"00000000-0000-4000-8000-000000000295","session_uid":"00000000-0000-4000-8000-000000000294","segment":{"seq":1},"ts":"2026-05-17T14:05:00.000Z","agent":{"name":"codex-cli"}}

fixtures/validation/invalid-graph/parent-cycle.trail.jsonl

@@ -0,0 +1,3 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"agent_message","id":"01HN0DE000000000000000000A","parent_id":"01HN0DE000000000000000000B","ts":"2026-05-17T14:00:05.000Z","payload":{"text":"a"}}
+{"type":"agent_message","id":"01HN0DE000000000000000000B","parent_id":"01HN0DE000000000000000000A","ts":"2026-05-17T14:00:06.000Z","payload":{"text":"b"}}

fixtures/validation/invalid-graph/parse-fidelity-drift.trail.jsonl

@@ -0,0 +1,2 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"},"parse_fidelity":{"quarantined_count":0}}
+{"type":"system_event","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:01.000Z","payload":{"kind":"x-codex/unknown_record","data":{"raw":{"type":"future_event"}}}}

fixtures/validation/invalid-graph/sequential-pairing-stays-in-branch.trail.jsonl

@@ -0,0 +1,4 @@
+{"type":"session","schema_version":"0.1.0","id":"01HSESS0000000000000000001","session_uid":"01HZZZZZZZZZZZZZZZZZZZZZ01","ts":"2026-05-17T14:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"tool_call","id":"01HEVTA0000000000000000001","ts":"2026-05-17T14:00:05.000Z","payload":{"tool":"subagent_invoke","args":{"task":"inspect"}}}
+{"type":"tool_call","id":"01HEVTA0000000000000000002","ts":"2026-05-17T14:00:06.000Z","parent_id":"01HEVTA0000000000000000001","payload":{"tool":"file_read","args":{"path":"child.txt"}}}
+{"type":"tool_result","id":"01HEVTA0000000000000000003","ts":"2026-05-17T14:00:07.000Z","payload":{"ok":true,"output":"parent result"}}

fixtures/validation/invalid-graph/sequential-pairing-stays-in-sibling-branch.trail.jsonl

@@ -0,0 +1,5 @@
+{"type":"session","schema_version":"0.1.0","id":"01HEVTA0000000000000000000","ts":"2025-01-01T00:00:00.000Z","agent":{"name":"codex-cli"}}
+{"type":"agent_message","id":"01HEVTA0000000000000000001","ts":"2025-01-01T00:00:01.000Z","payload":{"text":"branch point"}}
+{"type":"tool_call","id":"01HEVTA0000000000000000002","parent_id":"01HEVTA0000000000000000001","ts":"2025-01-01T00:00:02.000Z","payload":{"tool":"shell_command","args":{"command":"left"}}}
+{"type":"tool_call","id":"01HEVTA0000000000000000003","parent_id":"01HEVTA0000000000000000001","ts":"2025-01-01T00:00:03.000Z","payload":{"tool":"shell_command","args":{"command":"right"}}}
+{"type":"tool_result","id":"01HEVTA0000000000000000004","parent_id":"01HEVTA0000000000000000003","ts":"2025-01-01T00:00:04.000Z","payload":{"ok":true,"output":"right"}}